Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Nr1i1NM_00950410090Vdr   
NR1I1BC0608329606VDR   
NR1I1NM_0003769606VDR   
Nr1i1BC00671610090Vdr   

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

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Text2Knowledge ... Yong Huang 2002