PNEUMOCONIOSIS AMONG COAL MINERS IN PENNSYLVANIA.
D000874:Anthracosilicosis; D003031:Coal; D003032:Coal Mining; D004813:Epidemiology; D006801:Humans; D010414:Pennsylvania; D011009:Pneumoconiosis; D012829:Silicosis
D003031:Coal
ANTHRACOSILICOSIS; COAL MINING; EPIDEMIOLOGY; PENNSYLVANIA; PNEUMOCONIOSIS; SILICOSIS