[Occupational factors in the etiology of gastric and duodenal ulcers].
D003295:Convulsive Therapy; D004381:Duodenal Ulcer; D006801:Humans; D010437:Peptic Ulcer / Q000209:etiology*
PEPTIC ULCER/etiology and pathogenesis; SHOCK THERAPY
Factores profissionais na etiologia das úlceras gástrica e duodenal.