An 8-year follow-up of FEV and respiratory symptoms in middle-aged men [proceedings].
D000328:Adult; D005500:Follow-Up Studies; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000453:epidemiology / Q000503:physiopathology; D012907:Smoking; D006113:United Kingdom