Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HeyAE0038397227
HeyNM_0789337227dHey    d-hey    Hesr-1    CG11194   
HeyNT_0337787227dHey    d-hey    Hesr-1    CG11194   

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

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