Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HOX2FBC0492049606HOX2    HOX-2.6    HOXB4    142965
HOX2FNM_0240159606HOX2    HOX-2.6    HOXB4    142965
HOX2FNM_0240159606HOX2    HOX-2.6    HOXB4    142965

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

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Text2Knowledge ... Yong Huang 2002