title: [Ulcer relation to social and occupational factors. An epidemiological study].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003718:Denmark; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D010437:Peptic Ulcer / Q000453:epidemiology*; D012737:Sex Factors; D012959:Socioeconomic Factors
vernacular_title: Ulcussygdommens relation til sociale og arbejdsmaessige forhold. En epidemiologisk undersøgelse.