LUNG FUNCTION IN ELDERLY MALE HEAVY SMOKERS AND NONSMOKERS.
D005853:Geriatrics; D006801:Humans; D012119:Respiration; D012131:Respiratory Insufficiency; D012143:Respiratory Physiological Phenomena; D012907:Smoking; D013147:Spirometry; D013223:Statistics as Topic
GERIATRICS; RESPIRATION; RESPIRATORY INSUFFICIENCY; SMOKING; SPIROMETRY; STATISTICS