Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
BtnNM_01348310090Btn1a1    601610
BTNNM_0017329606BT    BTN1A1    601610
BTNNM_1745089913BTN1A1   
btnS752287242
BTNU386409913
BTNAF0374029913BTN-B   
BTNU6706510090601610
btnAE0037397227
btnNM_1700267227CG5264    1261/13    btn/MEOX   
btnNT_0337777227CG5264    1261/13    btn/MEOX   

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

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Text2Knowledge ... Yong Huang 2002