Problem of massive upper GI hemorrhage with emphasis on peptic ulcer.
D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D006801:Humans; D010437:Peptic Ulcer; D010438:Peptic Ulcer Hemorrhage
GASTROINTESTINAL SYSTEM/hemorrhage; PEPTIC ULCER/hemorrhage