title: [Cancer in merchant seamen. A group study].
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009326:Naval Medicine; D009369:Neoplasms / Q000453:epidemiology*; D009664:Norway; D009784:Occupational Diseases / Q000453:epidemiology*; D012306:Risk; D012907:Smoking
vernacular_title: Kreft blant sjømenn. En gruppeundersøkelse.