Your Query returns 15 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
tbx60N/Acb123    z.TBX6    ZF-TBX6    sb:cb123   
Tbx6NM_01153810090rv    602427
TBX6BC0260319606602427
tbx6AJ0102799606602427
TBX6AY4038879606602427
TBX6AY4038889598
TBX6AY40388910090602427
tbx6AJ0079899606602427
TBX6NM_0046089606602427
TBX6NM_0807589606602427
tbx6U5733110090602427
Tbx6NT_08164610090602427
Tbx6AB0913938355
tbx6U809517955
TBX6NT_0248129606602427

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

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Text2Knowledge ... Yong Huang 2002