title: Acute upper gastro-intestinal haemorrhage: a review of 71 cases.
mesh_terms: D001466:Barium Sulfate; D004724:Endoscopy; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D005773:Gastroscopy; D006801:Humans; D011859:Radiography
chemical_list: D001466:Barium Sulfate