Management of massive upper gastrointestinal bleeding.
D001803:Blood Transfusion; D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage / Q000601:surgery / Q000628:therapy*; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000601:surgery