Constitutional and psychologic factors of petic ulcer.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000209:etiology*; D010551:Personality; D011611:Psychosomatic Medicine; D013624:Taiwan