1. Exocrine pancreatic function tests;Lankisch, P.G.;Gut,1982
2. Niederau C, Grendell JH. Diagnosis of chronic pancreatitis. Gastroenterology 1985; 88: 1973-95.
3. Pancreatic function test by means of duodenal intubation;Gullo, L.,1986
4. Decrease in plasma amino acid level after secretin and pancreozymin as an indicator;Domschke, S.; Heptner, G.; Kolb, S.; Sailer, D.; Schneider, M.U.; Domschke, W.
5. Relationship between morphological changes detected by ultrasonography and pancreatic exocrine function in chronic pancreatitis;Bolondi, L.; Priori, P.; Gullo, L.;Pancreas,1987