Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
OB-RGRPNM_01070410090db    Obr    obl    LEPROT    Lepr   
OB-RGRPNM_14614610090db    Obr    obl    LEPROT    Lepr   
Ob-RgrpBC06200310116Obrgrp   
Ob-RgrpNM_02009910116Obrgrp   
OB-RGRPY126709606
OB-RGRPAF13920910116
OB-RGRPAJ01156510090

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

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Text2Knowledge ... Yong Huang 2002