Epidemiologists at the National Institute for Occupational Safety and Health say they've identified the largest cluster of advanced black lung disease ever reported, a cluster that was first uncovered by NPR 14 months ago.
HRIVELLED AND HARDENED LUNG OF BLACK LUNG VICTIM.
This image is cataloged under the National Archives Identifier (NAID) 545487.
Woodson, LeRoy, photographer/ National Archives and Records Administration, College Park
A slide from a presentation by the National Institute for Occupational Safety and Health shows the progression from a healthy lung to advanced black lung disease.
