[Papillotomy. Lasala papillotractor].
D014670:Ampulla of Vater / Q000601:surgery*; D001662:Biliary Tract Surgical Procedures; D004864:Equipment and Supplies; D006801:Humans; D010179:Pancreas; D013514:Surgical Procedures, Operative / Q000600:supply & distribution*
SURGERY, OPERATIVE/equipment and supplies; VATER'S AMPULLA/surgery