<?xml version="1.0" encoding="UTF-8"?>
<SAMPLE_SET xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SAMPLE alias="B80" accession="SRS2702242">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702242</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042934</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control13</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-27</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>43</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B103" accession="SRS2702243">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702243</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042933</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F13W13</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-04-28</VALUE>
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        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>81</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B113" accession="SRS2702244">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702244</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042935</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F14W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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    </SAMPLE_LINKS>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-03-21</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>65</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B115" accession="SRS2702245">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702245</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042936</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F14W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-04-29</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>65</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B68" accession="SRS2702246">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702246</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042929</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F12W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
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    </SAMPLE_LINKS>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-05</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
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    </SAMPLE_ATTRIBUTES>
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  <SAMPLE alias="B69" accession="SRS2702247">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702247</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042930</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F12W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
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        <TAG>collection_date</TAG>
        <VALUE>2015-12-28</VALUE>
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        <TAG>geo_loc_name</TAG>
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        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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        <TAG>host age</TAG>
        <VALUE>38</VALUE>
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        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B82" accession="SRS2702248">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702248</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042931</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F13W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
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        <TAG>collection_date</TAG>
        <VALUE>2016-01-15</VALUE>
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      <PRIMARY_ID>SRS2702249</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042932</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F13W2</TITLE>
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      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <PRIMARY_ID>SRS2702250</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042937</EXTERNAL_ID>
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    <TITLE>Control14</TITLE>
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        <TAG>host sex</TAG>
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      <PRIMARY_ID>SRS2702251</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042938</EXTERNAL_ID>
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    <TITLE>F15W0</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
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    </SAMPLE_ATTRIBUTES>
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  <SAMPLE alias="B38" accession="SRS2702252">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702252</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042899</EXTERNAL_ID>
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    <TITLE>F5W0</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
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      </SAMPLE_ATTRIBUTE>
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        <TAG>host sex</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
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      <SAMPLE_ATTRIBUTE>
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    </SAMPLE_ATTRIBUTES>
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  <SAMPLE alias="B39" accession="SRS2702253">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702253</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042900</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F5W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-18</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>63</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B41" accession="SRS2702254">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702254</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042902</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F5W18</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-12-14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>63</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B40" accession="SRS2702255">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702255</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042901</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F5W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-19</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>63</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B43" accession="SRS2702256">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702256</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042904</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F6W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-21</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B42" accession="SRS2702257">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702257</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042903</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control5</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-31</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>36</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B46" accession="SRS2702258">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702258</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042906</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F6W11</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B44" accession="SRS2702259">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702259</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042905</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F6W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-17</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B89" accession="SRS2702260">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702260</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042908</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F7W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-02-01</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>45</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B47" accession="SRS2702261">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702261</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042907</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control6</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-24</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>41</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B78" accession="SRS2702262">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702262</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042911</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control7</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-08</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>35</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B83" accession="SRS2702263">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702263</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042912</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F8W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-21</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>90</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B90" accession="SRS2702264">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702264</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042909</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F7W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-03-07</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>45</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B91" accession="SRS2702265">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702265</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042910</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F7W12</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-05-09</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>45</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B127" accession="SRS2702266">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702266</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042915</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F9W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-09-15</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B106" accession="SRS2702267">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702267</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042913</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F8W20</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-06-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>90</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B79" accession="SRS2702268">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702268</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042914</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control8</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-22</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>36</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B129" accession="SRS2702269">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702269</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042917</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F9W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-10-14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B130" accession="SRS2702270">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702270</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042918</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control9</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-09-09</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>28</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B17" accession="SRS2702271">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702271</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042966</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S6W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-05-05</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B15" accession="SRS2702272">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702272</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042965</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S6W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-18</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B14" accession="SRS2702273">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702273</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042964</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S6W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-06</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B112" accession="SRS2702274">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702274</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042963</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W23</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-08-26</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B111" accession="SRS2702275">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702275</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042962</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W13</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-06-17</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B110" accession="SRS2702276">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702276</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042961</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-06-03</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B109" accession="SRS2702277">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702277</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042960</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-04-19</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B108" accession="SRS2702278">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702278</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042959</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-03-31</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B25" accession="SRS2702279">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702279</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042968</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S7W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-05-22</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>93</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B24" accession="SRS2702280">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702280</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042967</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S7W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-05-07</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>93</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B58" accession="SRS2702281">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702281</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042948</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S2W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-24</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B35" accession="SRS2702282">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702282</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042947</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S1W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-10</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>78</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B128" accession="SRS2702283">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702283</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042916</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F9W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-09-30</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B86" accession="SRS2702284">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702284</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042943</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F16W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-08</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B133" accession="SRS2702285">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702285</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042940</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F15W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-10-18</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>90</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B33" accession="SRS2702286">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702286</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042945</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S1W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>78</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B34" accession="SRS2702287">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702287</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042946</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S1W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-24</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>78</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B132" accession="SRS2702288">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702288</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042939</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F15W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-10-05</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>90</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B7" accession="SRS2702289">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702289</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042942</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F16W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-26</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B134" accession="SRS2702290">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702290</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042941</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control15</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-09-13</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B120" accession="SRS2702291">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702291</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042969</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S8W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-07-19</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>63</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B121" accession="SRS2702292">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702292</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042970</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S8W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-08-19</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>63</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B88" accession="SRS2702294">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702294</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042973</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI26</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
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          <ID>419097</ID>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-12-30</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>88</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B37" accession="SRS2702295">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702295</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042974</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control17</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
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      <SAMPLE_LINK>
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          <DB>bioproject</DB>
          <ID>419097</ID>
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    </SAMPLE_LINKS>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-21</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>55</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B55" accession="SRS2702297">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702297</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042977</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI28</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
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          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-07</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>84</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B49" accession="SRS2702298">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702298</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042976</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control18</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-26</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>41</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B31" accession="SRS2702300">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702300</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042897</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F4W18</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-16</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B32" accession="SRS2702301">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702301</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042898</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-06-01</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>53</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B21" accession="SRS2702303">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702303</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042890</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F3W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-06-02</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B22" accession="SRS2702304">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702304</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042891</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F3W17</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-28</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B26" accession="SRS2702306">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702306</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042893</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F4W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-06-03</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B27" accession="SRS2702307">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702307</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042894</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F4W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-06-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B29" accession="SRS2702309">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702309</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042896</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F4W5</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-13</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B100" accession="SRS2702310">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702310</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042957</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S4W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-03-21</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>85</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B81" accession="SRS2702312">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702312</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042955</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S4W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-07</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>85</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B98" accession="SRS2702313">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702313</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042956</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S4W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-01-25</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>85</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B73" accession="SRS2702315">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702315</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042954</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S3W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-16</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>99</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B61" accession="SRS2702316">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702316</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042951</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S2W10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-30</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B59" accession="SRS2702318">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702318</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042949</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S2W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-05</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B60" accession="SRS2702319">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702319</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042950</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S2W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
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      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-19</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B70" accession="SRS2702321">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702321</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042979</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI29</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
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      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-08</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B124" accession="SRS2702322">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702322</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042982</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI32</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
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    </SAMPLE_NAME>
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      <SAMPLE_LINK>
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      <SAMPLE_ATTRIBUTE>
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        <VALUE>2016-08-29</VALUE>
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        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
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        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
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        <TAG>host sex</TAG>
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      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B8" accession="SRS2702324">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702324</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042944</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control16</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-12-11</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>27</VALUE>
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      <SAMPLE_ATTRIBUTE>
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        <TAG>host sex</TAG>
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        <TAG>disease</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
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      <SAMPLE_ATTRIBUTE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B66" accession="SRS2702325">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702325</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042928</EXTERNAL_ID>
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    <TITLE>F12W0</TITLE>
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      <SAMPLE_LINK>
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      <SAMPLE_ATTRIBUTE>
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        <VALUE>38</VALUE>
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      <SAMPLE_ATTRIBUTE>
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        <TAG>host sex</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B53" accession="SRS2702327">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702327</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042922</EXTERNAL_ID>
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    <TITLE>F10W10</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-18</VALUE>
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      <SAMPLE_ATTRIBUTE>
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        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
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      <SAMPLE_ATTRIBUTE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B51" accession="SRS2702328">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702328</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042920</EXTERNAL_ID>
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    <TITLE>F10W2</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
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        <VALUE>2015-09-22</VALUE>
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        <TAG>host sex</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
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      <SAMPLE_ATTRIBUTE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B50" accession="SRS2702330">
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      <PRIMARY_ID>SRS2702330</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042919</EXTERNAL_ID>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
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        <VALUE>2015-08-26</VALUE>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B64" accession="SRS2702331">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702331</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042926</EXTERNAL_ID>
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    <TITLE>F11W4</TITLE>
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      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-04</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
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      <SAMPLE_ATTRIBUTE>
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        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
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        <VALUE>83</VALUE>
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      <SAMPLE_ATTRIBUTE>
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        <TAG>host sex</TAG>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B54" accession="SRS2702333">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702333</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042923</EXTERNAL_ID>
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    <TITLE>Control10</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
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      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-02</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>21</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B18" accession="SRS2702334">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702334</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042887</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F3W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B5" accession="SRS2702336">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702336</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042881</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F1W6</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-12-14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>80</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B6" accession="SRS2702337">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702337</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042882</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-27</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>35</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B4" accession="SRS2702339">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702339</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042880</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F1W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-16</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>80</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B11" accession="SRS2702340">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702340</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042885</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F2W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B9" accession="SRS2702342">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702342</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042883</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F2W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-02-13</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B10" accession="SRS2702343">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702343</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042884</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F2W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-06</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>52</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B1" accession="SRS2702293">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702293</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042971</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI25</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>86</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B48" accession="SRS2702296">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702296</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042975</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI27</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-08-31</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>66</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B57" accession="SRS2702299">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702299</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042978</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control19</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-08</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>42</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B20" accession="SRS2702302">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702302</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042889</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F3W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-04-28</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B23" accession="SRS2702305">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702305</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042892</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control3</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>73</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B28" accession="SRS2702308">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702308</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042895</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F4W4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-07-07</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>76</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B107" accession="SRS2702311">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702311</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042958</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S5W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-03-16</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>92</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B72" accession="SRS2702314">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702314</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042953</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S3W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-11-02</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>99</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B71" accession="SRS2702317">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702317</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042952</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>S3W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-20</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>99</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B74" accession="SRS2702320">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702320</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042980</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI30</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-12-11</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>25</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B122" accession="SRS2702323">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702323</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042981</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>CDI31</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2016-07-28</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>80</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B65" accession="SRS2702326">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702326</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042927</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control11</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-25</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>57</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B52" accession="SRS2702329">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702329</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042921</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F10W6</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-22</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>45</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B63" accession="SRS2702332">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702332</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042925</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F11W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-18</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B19" accession="SRS2702335">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702335</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042888</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F3W2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-04-14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>38</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B3" accession="SRS2702338">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702338</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042879</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F1W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-10-27</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>80</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B13" accession="SRS2702341">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702341</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042886</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-02-12</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>51</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>Control</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B2" accession="SRS2702367">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702367</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042972</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Control12</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-03-04</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>not collected</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>not collected</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>NA</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="B62" accession="SRS2702410">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2702410</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08042924</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>F11W0</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>408170</TAXON_ID>
      <SCIENTIFIC_NAME>human gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>419097</ID>
          <LABEL>PRJNA419097</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2015-09-30</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation-source</TAG>
        <VALUE>stool</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host age</TAG>
        <VALUE>83</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>biomaterial_provider</TAG>
        <VALUE>Hong Kong (Prince of Wales Hospital)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>host sex</TAG>
        <VALUE>female</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>disease</TAG>
        <VALUE>CDI</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ethnicity</TAG>
        <VALUE>Chinese</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
</SAMPLE_SET>
