Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hoxb1aNM_1311157955Z-3    hoxb1    hoxb3a    hoxb4a    hoxb5a    hoxb6a    hoxb7a    hoxb8a   
hoxb1aAF0712517955
hoxb1aAL6457827955

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

Google

Text2Knowledge ... Yong Huang 2002