Medical aspects of gastro-intestinal haemorrhage.
D004932:Esophageal and Gastric Varices / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology; D006396:Hematemesis / Q000150:complications; D006801:Humans; D010437:Peptic Ulcer / Q000150:complications