[Importance of the psychological factor in the problem of gastroduodenal ulcer].
D006801:Humans; D010437:Peptic Ulcer / Q000209:etiology*; D011602:Psychophysiologic Disorders; D013315:Stress, Psychological / Q000150:complications*
Supremacía del factor psíquico en la problemática de la úlcera gastroduodenal.