Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
DREG-5NG_0005327227Dreg    reg-5    CG2928    CT9939   
DREG-5NM_0578257227Dreg    Dreg5    reg-5    CG2928   
DREG-5NT_0337787227Dreg    Dreg5    reg-5    CG2928   

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

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Text2Knowledge ... Yong Huang 2002