Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Hox-2.4NM_0240169606HOX2    HOX2D    HOXB8   
Hox-2.4NM_01046110090Hoxb8   

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

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Text2Knowledge ... Yong Huang 2002