Upper gastrointestinal bleeding in an African setting.
D000208:Acute Disease; D000328:Adult; D004381:Duodenal Ulcer / Q000150:complications; D004932:Esophageal and Gastric Varices / Q000150:complications; D005260:Female; D005756:Gastritis / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000401:mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000175:diagnosis; D011446:Prospective Studies; D015030:Zimbabwe