Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HBD-1BC0476779606HBD1    DEFB-1    DEFB101    BD1    DEFB1   
HBD-1NM_0052189606BD1    HBD1    DEFB-1    DEFB101    DEFB1   
hBD-1X927449606
hbd-1NC_000917224325

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

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Text2Knowledge ... Yong Huang 2002