Chest symptoms and farmer's lung: a community survey.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001249:Asthma / Q000453:epidemiology; D004739:England; D005203:Farmer's Lung / Q000453:epidemiology* / Q000276:immunology; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D011233:Precipitin Tests; D012131:Respiratory Insufficiency; D006255:Rhinitis, Allergic, Seasonal / Q000453:epidemiology; D012907:Smoking; D013183:Sputum