Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SERGLYCINBC0223139606PRG    PPG    PRG1   
SERGLYCINBC0155169606PRG    PPG    PRG1   
serglycinM900589606

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002