The plasma concentration of oxytocin before and at different time points after an injection of 0.2 μg/kg body weight of cholecystokinin-8 (CCK-8). There were 11 subjects in each group. Values are given as mean and standard error of the mean (SEM). There was no difference between the groups neither when calculating values at different time points studied nor the area under the curve (AUC). Wilcoxon signed rank test. = control, = patient.