Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Rev-erbNM_01158410090RVR    beta    Nr1d2   
Rev-erbBC00855610090RVR    beta    Nr1d2   

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

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Text2Knowledge ... Yong Huang 2002