Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
wu:fb98f01BC0453647955fb98f01    Nfyc    zgc:55514   
wu:fb98f01NM_1996397955Nfyc    fb98f01    zgc:55514   
wu:fb98f01BC0656457955fb98f01    Nfyc    zgc:55514   

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

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Text2Knowledge ... Yong Huang 2002