<?xml version="1.0" encoding="UTF-8"?>
<SAMPLE_SET xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SAMPLE alias="GSM2878231" accession="SRS2739245">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739245</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138265</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878231</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 1, replicate 1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_1d14</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 1</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878232" accession="SRS2739246">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739246</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138272</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878232</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 1, replicate 2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_134</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 1</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878234" accession="SRS2739248">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739248</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138270</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878234</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 1, replicate 4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_141</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 1</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878237" accession="SRS2739251">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739251</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138267</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878237</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 7, replicate 3</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_744</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 7</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878238" accession="SRS2739252">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739252</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138266</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878238</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 7, replicate 4</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_745</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 7</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878233" accession="SRS2739247">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739247</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138271</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878233</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 1, replicate 3</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_138</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 1</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878236" accession="SRS2739250">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739250</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138268</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878236</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 7, replicate 2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_742</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 7</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM2878235" accession="SRS2739249">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS2739249</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN08138269</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM2878235</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>Postnatal day 7, replicate 1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>421308</ID>
          <LABEL>PRJNA421308</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Whole heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>tissue</TAG>
        <VALUE>Heart</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>individual id</TAG>
        <VALUE>Mouse_741</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>strain</TAG>
        <VALUE>Hsd:ICR(CD-1)</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>Postnatal day 7</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>Sex</TAG>
        <VALUE>male</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
</SAMPLE_SET>
