[Incidence of gastroduodenal ulcer in workers of a large industrial center].
D006801:Humans; D015994:Incidence; D007221:Industry; D009784:Occupational Diseases; D010437:Peptic Ulcer / Q000706:statistics & numerical data*
OCCUPATIONAL DISEASES; PEPTIC ULCER/statistics
Sulla incidenza della malattia ulcerosa gastro-duodenale negli operai di un grande complesso industriale.