title: Harpoon extraction of a common bile duct stone impacted at the ampulla of Vater with needle-knife sphincterotome.
authors.forename: V C
authors.initials: VC
authors.lastname: McAlister
authors.forename: A
authors.initials: A
authors.lastname: Roy
authors.forename: R B
authors.initials: RB
authors.lastname: Passi
mesh_terms: D000328:Adult; D014670:Ampulla of Vater / Q000601:surgery*; D042882:Gallstones / Q000601:surgery*; D006801:Humans; D008297:Male; D016717:Sphincterotomy, Endoscopic