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Kaplan-Meier estimates of the proportion of patients without biliary complications (A) in the post-endoscopic papillary balloon dilation (EPBD) (n=235) and post-endoscopic sphincterotomy (EST) patients (n=126) (p<0.05) or cholecystitis (B) in the post-EPBD (n=150) and post-EST patients (n=68) (p<0.05).
