Stress ulcers.
D004381:Duodenal Ulcer / Q000150:complications / Q000209:etiology; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000209:etiology*; D010438:Peptic Ulcer Hemorrhage / Q000209:etiology; D013276:Stomach Ulcer / Q000150:complications / Q000209:etiology; D013315:Stress, Psychological; D014947:Wounds and Injuries / Q000150:complications