Haematemesis and its sequelae.
D004381:Duodenal Ulcer / Q000628:therapy*; D005743:Gastrectomy; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000150:complications*