Bauer, F.L.R.

bowel resection hyperplasia effect intestine ileum activity content control study factor transection operation mucosal adaptation mucosa bowel resection month change group dowling cell proliferation segment ileal crypt villou experiment jejunum proliferation 48 hours gastroenterology increase diversion radioactivity colon hypertrophy secretion jejunal response chapter villous height pancreatic absorption tilson epithelial weight pancreatic juice humoral acid contents number 0.05 animal dna contents altmann 1 month johnson postresectional villi value postresectional hyperplasia villu hormone gastrin level gleeson tropic thymidine dna content height s.e.m method loran biliary tropic effect evidence epithelium jejunal resection control group wright epithelial cells