Secretin-pancreozymin test (SPT) and endoscopic retrograde cholangiopancreatography (ERCP): both are necessary for diagnosing or excluding chronic pancreatitis. - Lankisch,P.G.; Seidensticker,F.; Otto,J.; Lubbers,H.; Mahlke,R.; Stockmann,F.; Folsch,U.R.; Creutzfeld,W. (Pancreas, 1996)