title: Towards a selective policy of operative cholangiography: a prospective clinical study.
mesh_terms: D002758:Cholangiography; D002763:Cholecystectomy; D002769:Cholelithiasis / Q000601:surgery*; D042882:Gallstones / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D007431:Intraoperative Complications / Q000000981:diagnostic imaging*; D011446:Prospective Studies