title: Endoscopy in gastrointestinal bleeding.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D004386:Duodenum; D019723:Endoscopes; D004932:Esophageal and Gastric Varices / Q000150:complications; D004941:Esophagitis / Q000150:complications; D020701:Esophagoscopes; D005260:Female; D005756:Gastritis / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology; D020699:Gastroscopes; D006396:Hematemesis / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D008551:Melena / Q000175:diagnosis / Q000209:etiology; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000175:diagnosis; D011859:Radiography
chemical_list: D001466:Barium Sulfate