A project for the prevention of disability from chronic respiratory disease in working males.
D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000175:diagnosis; D002908:Chronic Disease; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008297:Male; D008400:Mass Chest X-Ray; D008875:Middle Aged; D009519:New York City; D011314:Preventive Health Services; D011656:Pulmonary Emphysema / Q000453:epidemiology / Q000517:prevention & control*; D012140:Respiratory Tract Diseases / Q000517:prevention & control; D012907:Smoking; D013147:Spirometry