Therapeutic endoscopy and bleeding ulcers.
D000818:Animals; D004564:Electrocoagulation; D005773:Gastroscopy; D006801:Humans; D053685:Laser Therapy; D010438:Peptic Ulcer Hemorrhage / Q000209:etiology / Q000601:surgery*; D012307:Risk Factors; D013276:Stomach Ulcer / Q000150:complications / Q000601:surgery; D014481:United States