title: Multiquadrant precut papillotomy for extraction of large impacted common bile duct stone.
mesh_terms: D000368:Aged; D014670:Ampulla of Vater / Q000601:surgery; D004384:Duodenoscopy; D004386:Duodenum / Q000601:surgery*; D005260:Female; D042882:Gallstones / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008722:Methods