Asthma and work capacity.
D000402:Airway Obstruction / Q000503:physiopathology; D001249:Asthma / Q000503:physiopathology*; D004185:Disability Evaluation; D005203:Farmer's Lung / Q000503:physiopathology*; D006801:Humans; D008297:Male; D012129:Respiratory Function Tests; D012621:Seasons