Coal workers' pneumoconiosis in South Africa.
D000818:Animals; D001273:Atmosphere Exposure Chambers; D001344:Autopsy; D001991:Bronchitis / Q000453:epidemiology; D003032:Coal Mining; D004391:Dust / Q000032:analysis; D000882:Haplorhini; D006801:Humans; D007883:Legislation, Medical; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000453:epidemiology; D008264:Macrophages / Q000502:physiology; D011009:Pneumoconiosis / Q000453:epidemiology* / Q000473:pathology; D011014:Pneumonia / Q000453:epidemiology; D011656:Pulmonary Emphysema / Q000453:epidemiology; D011658:Pulmonary Fibrosis / Q000453:epidemiology; D044469:Racial Groups; D012822:Silicon Dioxide / Q000032:analysis; D012829:Silicosis / Q000453:epidemiology; D013019:South Africa; D013997:Time Factors; D014376:Tuberculosis / Q000453:epidemiology
D004391:Dust; D012822:Silicon Dioxide