Coal workers' pneumoconiosis.
D000368:Aged; D001991:Bronchitis / Q000209:etiology; D002205:Caplan Syndrome / Q000175:diagnosis / Q000209:etiology; D003032:Coal Mining; D004391:Dust; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008175:Lung Neoplasms / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011009:Pneumoconiosis / Q000175:diagnosis / Q000209:etiology*; D011656:Pulmonary Emphysema / Q000175:diagnosis / Q000209:etiology; D011658:Pulmonary Fibrosis / Q000175:diagnosis / Q000209:etiology; D011660:Pulmonary Heart Disease / Q000209:etiology; D011791:Quartz / Q000009:adverse effects; D011859:Radiography; D014481:United States
D004391:Dust; D011791:Quartz