1. Worning H: Chronic pancreatitis: Pathogenesis, natural history and conservative treatment. Clin Gastroenterol 13:871?894, 1984
2. Sarles H: An international survey on nutrition and pancreatitis. Digestion 9:389?403, 1973
3. Ammann RW, Akovbiantz A, Largiader F, Schueler G: Course and outcome of chronic pancreatitis. Longitudinal study of a mixed medical-surgical series of 245 patients. Gastroenterology 86:820?828, 1984
4. Ammann RW, Knoblauch M, Mohr P, Deyhle P, Lagiader F, Akovbiantz A, Schuler G, Schneider J: High incidence of extrapancreatic carcinoma in chronic pancreatitis. Scand J Gastroenterol 15:395?399, 1980
5. Scuro LA, Vantini I, Piubello W, Micciolo R, Talamini G, Benini L, Benini P, Pederzoli P, Marzoli G, Vaona B, Cavallini G: Evolution of pain in chronic relapsing pancreatitis: A study of operated and nonoperated patients. Am J Gastroenterol 78:495?501, 1983