Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Hox-2.5NM_00827010090Hoxb9   
HOX-2.5NM_0240179606HOX2    HOX2E    HOXB9   
HOX-2.5BC0155659606HOX2    HOX2E    HOXB9   
Hox-2.5X6431610090

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

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Text2Knowledge ... Yong Huang 2002