[On primary lung cancer in iron miners].
D000328:Adult; D000368:Aged; D006801:Humans; D007501:Iron; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000209:etiology; D008875:Middle Aged; D008906:Mining; D009784:Occupational Diseases / Q000453:epidemiology*
D007501:Iron
O pervichnom rake legkogo u gornorabochikh zhelezorudnykh shakht.