Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NKX2BNM_0025099606NKX2.2    NKX2-2    604612
NKX2BAL1333259606604612
NKX2BAF1840459606Nkx2.2    604612

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

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Text2Knowledge ... Yong Huang 2002