Pneumoconiosis in coal miners: NIOSH research and surveillance.
D002487:Centers for Disease Control and Prevention, U.S.; D003032:Coal Mining; D006801:Humans; D008403:Mass Screening; D009314:National Institute for Occupational Safety and Health, U.S.; D011009:Pneumoconiosis / Q000000981:diagnostic imaging / Q000517:prevention & control*; D011859:Radiography; D014481:United States