Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NR2A21NM_0004579606TCF    HNF4    NR2A1    TCF14    HNF4A   
NR2A21NM_1788499606TCF    HNF4    NR2A1    TCF14    HNF4A   
NR2A21NM_1788509606TCF    HNF4    NR2A1    TCF14    HNF4A   

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

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Text2Knowledge ... Yong Huang 2002