Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
E030044M24RikBC04483410090Myh9   
E030044M24RikBC04370310090Myh9   
E030044M24RikBC05436010090Myh9   
E030044M24RikNM_02241010090Myhn1    D0Jmb2    Myhn-1    TU-72.6    Myh9   
E030044M24RikNM_18132710090Myhn1    D0Jmb2    Myhn-1    TU-72.6    Myh9   

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

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Text2Knowledge ... Yong Huang 2002