Pulmonary sarcoidosis in African mineworkers.
D000328:Adult; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008875:Middle Aged; D008906:Mining; D009787:Occupational Medicine; D011859:Radiography; D012507:Sarcoidosis / Q000000981:diagnostic imaging*; D013019:South Africa