Psychological stress and stomach ulcer: in search of an hypothesis.
D000786:Anger / Q000502:physiology; D000818:Animals; D003220:Conflict, Psychological; D005239:Fear / Q000502:physiology; D006801:Humans; D013276:Stomach Ulcer / Q000209:etiology* / Q000523:psychology; D013315:Stress, Psychological / Q000150:complications*