Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
T/EBPNM_00938510090Ttf-1    Nkx2-1    Nkx2.1    tinman    Nkx-2.1    Titf1   
T/EBPBC05760710090Nkx2.1    Nkx-2.1    tinman    Titf1   

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

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Text2Knowledge ... Yong Huang 2002