C2.1F1 Genetic predictors for placebo effects.
(A) IBS outcomes (IBS-SSS) by COMT genotype and varying placebo treatments.65 (B) Major cardiovascular disease outcomes by COMT genotype in the WHS.62 (C) Placebo and aspirin response in cardiovascular disease prevention by COMT genotype in the WHS. (D) Placebo and vitamin E response in cardiovascular disease prevention by COMT genotype in the WHS.62