Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Tcf3bNM_01044610090Hnf3b    Hnf-3b    Tcf-3b    Foxa2   
TCF3BBC0065459606HNF3B    MGC19807    FOXA2   
TCF3BBC0117809606HNF3B    MGC19807    FOXA2   
TCF3BNM_1536759606HNF3B    MGC19807    FOXA2   
TCF3BNM_0217849606HNF3B    MGC19807    FOXA2   
tcf3bNM_1312967955
tcf3bAF1364567955
tcf3bAY2210317955

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

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Text2Knowledge ... Yong Huang 2002