Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
zgc:56274BC0460417955fb14g10    HADHB    wu:fb14g10   
zgc:56274NM_2000197955HADHB    fb14g10    wu:fb14g10   

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

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Text2Knowledge ... Yong Huang 2002