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<SAMPLE_SET xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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    </IDENTIFIERS>
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        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>46333</ID>
          <LABEL>PRJNA46333</LABEL>
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      <PRIMARY_ID>SRS1490124</PRIMARY_ID>
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