title: Exocrine pancreatic function before and after Billroth II gastrectomy.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D010179:Pancreas / Q000201:enzymology*; D010189:Pancreatic Juice / Q000378:metabolism*; D011178:Postgastrectomy Syndromes / Q000209:etiology*