PNEUMOCONIOSIS STUDY OF WESTERN PENNSYLVANIA BITUMINOUS-COAL MINERS.
D003031:Coal; D006801:Humans; D008906:Mining; D010414:Pennsylvania; D011009:Pneumoconiosis; D013902:Radiography, Thoracic; D012129:Respiratory Function Tests; D013223:Statistics as Topic
D003031:Coal
MINING; PENNSYLVANIA; PNEUMOCONIOSIS; RESPIRATORY FUNCTION TESTS; STATISTICS; THORACIC RADIOGRAPHY