title: Upper gastrointestinal bleeding--when to operate.
authors: Department of Surgery, General Hospital, Birmingham, UK.
authors: K E
authors: KE
authors: Wheatley
authors: P W
authors: PW
authors: Dykes
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D013505:Digestive System Surgical Procedures; D006801:Humans; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000401:mortality / Q000601:surgery*; D013997:Time Factors