“…Schappi et al (69) documented significant correlation between decreased fecal elastase‐1 concentrations and duodenal morphology and inflammation in primary gastrointestinal diseases. However, reduced pancreatic secretory capacity in celiac disease patients was also reported with the use of other tests: fecal chymotrypsin test (70), pancreolauryl test (71), breath test (72) and secretin‐cholecystokinin test (67,70,73) in a smaller percentage of patients. Thus, villous atrophy generally seems to influence indirect pancreatic function tests.…”