Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC63474BC0548977955Itga9    zgc:63474   
MGC63474NM_2010377955Itga9    zgc:63474   

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

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Text2Knowledge ... Yong Huang 2002