Stress and peptic ulcer disease.
D004381:Duodenal Ulcer / Q000209:etiology; D006801:Humans; D008016:Life Change Events; D010437:Peptic Ulcer / Q000209:etiology*; D010551:Personality; D013276:Stomach Ulcer / Q000209:etiology; D013315:Stress, Psychological / Q000150:complications*