Therapeutic endoscopy.
D014670:Ampulla of Vater / Q000601:surgery; D004724:Endoscopy / Q000379:methods*; D005336:Fiber Optic Technology; D042882:Gallstones / Q000601:surgery*; D006471:Gastrointestinal Hemorrhage / Q000601:surgery*; D006801:Humans; D007417:Intestinal Polyps / Q000601:surgery*