Validation of a screening procedure for chronic nonspecific respiratory disease.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010808:Physical Examination; D013902:Radiography, Thoracic; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000175:diagnosis*; D013223:Statistics as Topic; D011795:Surveys and Questionnaires