Keywords: Black lung screening.jpg en X-ray tech explaining the basics of a chest x-ray to a coal miner in Harlan County KY as part of the Enhanced Coal Workers' Health Surveillance Program black lung screening 2006-11-17 11 13 58 http //www flickr com/photos/niosh/9253623473/ National Institute for Occupational Safety and Health PD-USGov Uploaded with UploadWizard Black lung disease Miners |