Lung volumes in working coal miners.
D000403:Airway Resistance; D003032:Coal Mining; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008171:Lung Diseases / Q000000981:diagnostic imaging; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000000981:diagnostic imaging; D008297:Male; D008722:Methods; D010414:Pennsylvania; D010993:Plethysmography, Whole Body; D011009:Pneumoconiosis / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011859:Radiography; D012119:Respiration; D012907:Smoking / Q000150:complications; D013147:Spirometry; D014797:Vital Capacity