GNB3 and dyspepsia: The GNB3 genotype distribution in subjects without dyspepsia (controls) of 191 CC (25.1%), 368 CT (48.4%), and 202 TT (26.5%), and 17 CC (25.0%), 29 CT (42.6%), and 22 TT (32.4%) in subjects with dyspepsia was also compatible with the Hardy-Weinberg equilibrium.