Occupational lung disease: how significant a problem?
D001249:Asthma / Q000209:etiology; D003032:Coal Mining; D004391:Dust; D006801:Humans; D008171:Lung Diseases / Q000209:etiology*; D008175:Lung Neoplasms / Q000209:etiology; D009784:Occupational Diseases / Q000209:etiology*; D011009:Pneumoconiosis / Q000209:etiology
D004391:Dust