Oesophago-gastro-duodenoscopy in acute bleeding.
D001466:Barium Sulfate; D004381:Duodenal Ulcer / Q000175:diagnosis; D004724:Endoscopy; D006396:Hematemesis / Q000175:diagnosis*; D006801:Humans; D008545:Melanoma / Q000175:diagnosis*; D010437:Peptic Ulcer / Q000175:diagnosis
D001466:Barium Sulfate