Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC56548BC0494827955Rds    zgc:56548   
MGC56548NM_2010147955Rds    zgc:56548   

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

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Text2Knowledge ... Yong Huang 2002