title: Preoperative drainage of common bile duct obstruction.
mesh_terms: D001646:Bile; D001651:Cholestasis, Extrahepatic / Q000209:etiology / Q000628:therapy*; D003137:Common Bile Duct Diseases / Q000209:etiology / Q000628:therapy*; D004322:Drainage / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000150:complications / Q000601:surgery*; D011300:Preoperative Care