Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Apoa-4NM_00746810090Apoa4   
apoa-4M6424810090
apoa-4M6424910090
apoa-4M6425010091

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

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Text2Knowledge ... Yong Huang 2002