Girella, E The assay of chymotrypsin in stool as a simple and effective test of exocrine pancreatic activity in cystic fibrosis. [electronic resource] - Pancreas 1988 - 254-62 p. digital Publication Type: Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article ISSN: 0885-3177 Standard No.: 10.1097/00006676-198805000-00003 doi Subjects--Topical Terms: AdolescentAdultChildChild, PreschoolChymotrypsin--analysisCystic Fibrosis--classificationDietary Fats--metabolismDuodenum--enzymologyExocrine Pancreatic Insufficiency--diagnosisFeces--enzymologyHumansInfantMethodsPancreas--enzymology