Gastrointestinal haemorrhages.
D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage / Q000628:therapy*; D010437:Peptic Ulcer; D010438:Peptic Ulcer Hemorrhage
GASTROINTESTINAL SYSTEM/hemorrhage; HEMORRHAGE/therapy; PEPTIC ULCER/hemorrhage