TGFB1 and colorectal adenoma: Berndt et al. (38), in a study with five TGFB1 polymorphisms (rs1800468, rs1800469, rs1800470, rs1800471, and rs1800472), found an association of the GTCGC haplotype structure with susceptibility to colorectal adenoma, which is partially compatible with our individual polymorphism analysis, where the T allele of rs1800469 (C-509T) and C allele of rs1800470 (T869C) polymorphism conferred risk for WT.