Your Query returns 1 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Pitx2bNM_01109810090Brx1    Ptx2    Rieg    Brx1a    Brx1b    Otlx2    Munc30    Pitx2a    Pitx2c    solurshin    9430085M16Rik    Pitx2   

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

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Text2Knowledge ... Yong Huang 2002