Polymorphisms in the transcription factor 7-like 2 (TCF7L2) gene are associated with type 2 diabetes in the Amish: replication and evidence for a role in both insulin secretion and insulin resistance. - Damcott,CM.; Pollin,TI.; Reinhart,LJ.; Ott,SH.; Shen,H.; Silver,KD.; Mitchell,BD.; Shuldiner,AR. (Diabetes, 2006)