Epidemiology of coal workers' pneumoconiosis.
D001991:Bronchitis / Q000453:epidemiology; D003032:Coal Mining; D006801:Humans; D008297:Male; D009026:Mortality; D011009:Pneumoconiosis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D011658:Pulmonary Fibrosis / Q000209:etiology; D011859:Radiography; D012106:Research; D012119:Respiration; D012907:Smoking; D014481:United States