Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
titf1NM_1315897955nk2.1a    titf1a   
titf1AJ0096077719
titf1AJ5157107719
Titf1NM_00938510090T/EBP    Ttf-1    Nkx2-1    Nkx2.1    tinman    Nkx-2.1    600635
TITF1BC0062219606NKX2A    TTF-1    TTF1    NKX2.1    TEBP    600635
TITF1AY0835879544
TITF1AY0835889544
Titf1NT_03955110090600635
Titf1BC05760710090T/EBP    Nkx2.1    Nkx-2.1    tinman    600635
TITF1NT_0264379606600635
TITF1NM_0033179606BCH    BHC    TEBP    TTF1    NKX2A    TTF-1    NKX2.1    600635

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

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Text2Knowledge ... Yong Huang 2002