SURVEY FOR CHRONIC OBSTRUCTIVE LUNG DISEASE IN A CLINIC POPULATION.
D001699:Biometry; D001991:Bronchitis; D003625:Data Collection; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive; D011656:Pulmonary Emphysema; D013223:Statistics as Topic
BRONCHITIS; PULMONARY EMPHYSEMA; STATISTICS