SEASONAL VARIATIONS IN THE MEASUREMENT OF VENTILATORY CAPACITY AND IN THE ANSWERS OF WORKING COAL MINERS TO A RESPIRATORY SYMPTOMS QUESTIONARY.
D003031:Coal; D003371:Cough; D006801:Humans; D008906:Mining; D011009:Pneumoconiosis; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases; D012621:Seasons; D012907:Smoking; D013223:Statistics as Topic; D006113:United Kingdom
D003031:Coal
COUGH; GREAT BRITAIN; MINING; PNEUMOCONIOSIS; RESPIRATORY FUNCTION TESTS; RESPIRATORY TRACT DISEASES; SEASONS; SMOKING; STATISTICS