Development of patterns of coal workers' pneumoconiosis in Pennsylvania and its association with respiratory impairment.
D000062:Accidents, Occupational; D000328:Adult; D000367:Age Factors; D001991:Bronchitis / Q000209:etiology; D003031:Coal / Q000032:analysis; D003032:Coal Mining; D004185:Disability Evaluation; D004417:Dyspnea / Q000209:etiology; D006801:Humans; D007883:Legislation, Medical; D008297:Male; D008875:Middle Aged; D010414:Pennsylvania; D011009:Pneumoconiosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology; D011859:Radiography; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000145:classification / Q000209:etiology*; D012907:Smoking / Q000150:complications; D013997:Time Factors; D014835:Volatilization
D003031:Coal