Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Nr1a2NM_00938010090Thrb1    Thrb2    T3R[b]    T3Rbeta    c-erbAbeta    Thrb   
NR1A2NM_0004619606GRTH    THR1    ERBA2    THRB1    THRB2    ERBA-BETA    THRB   
NR1A2NM_1313407955trb    TR[b]1    TR-beta    fj24f03    wu:fj24f03    thrb   

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

Google

Text2Knowledge ... Yong Huang 2002