title: Residual pancreatic exocrine function before and after pancreaticoduodenectomy for periampullary cancer.
mesh_terms: D010129:4-Aminobenzoic Acid / Q000652:urine; D000328:Adult; D014670:Ampulla of Vater; D006801:Humans; D010179:Pancreas / Q000502:physiology / Q000503:physiopathology*; D010183:Pancreatic Ducts / Q000502:physiology / Q000503:physiopathology; D010190:Pancreatic Neoplasms / Q000601:surgery* / Q000652:urine; D011184:Postoperative Period; D013997:Time Factors
chemical_list: D010129:4-Aminobenzoic Acid