Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
5730406O18RikNM_02876310090NPR    Cbx6    Npcd    D15Bwg0580e    1200009K17Rik    1700036C17Rik    Nptxr   
5730406O18RikNM_03068910090NPR    Cbx6    Npcd    D15Bwg0580e    1200009K17Rik    1700036C17Rik    Nptxr   
5730406O18RikBC05896210090NPR    1200009K17Rik    Cbx6    D15Bwg0580e    Nptxr   
5730406O18RikBC04824010090NPR    1200009K17Rik    Cbx6    D15Bwg0580e    Npcd    Nptxr   

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

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Text2Knowledge ... Yong Huang 2002