title: Exploration of the common bile duct. Effect of a change in policy in one surgical unit.
mesh_terms: D002758:Cholangiography; D002763:Cholecystectomy / Q000639:trends*; D003135:Common Bile Duct / Q000601:surgery*; D004724:Endoscopy; D005705:Gallbladder Diseases / Q000601:surgery*; D006801:Humans; D008297:Male; D011300:Preoperative Care