Acute upper gastrointestinal haemorrhage at Kenyatta National Hospital, Kenya. A prospective endoscopic study.
D000293:Adolescent; D000328:Adult; D000368:Aged; D004724:Endoscopy; D005260:Female; D005336:Fiber Optic Technology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies