RELID 1indicates all PC records with GRPID = DY1_DRGX are related to all PP records with GRPID = DY1DRGX.
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RowSTUDYIDRDOMAINUSUBJIDIDVARIDVARVALRELTYPERELID
1ABC-123PCABC-123-0001PCGRPIDDY1_DRGX
1
2ABC-123PPABC-123-0001PPGRPIDDY1DRGX
1
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