Coal workers' pneumoconiosis in small underground coal mines in the United States.
Seaton
Anthony
A
Institute of Occupational Medicine, 8 Avon Grove, Cramond, Edinburgh EH4 6RF, UK. a.seaton@abdn.ac.uk
D055008:Anthracosis / Q000453:epidemiology*; D003032:Coal Mining; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology