CURRENT CONCEPTS OF THE EPIDEMIOLOGY AND ETIOLOGY OF CHRONIC BRONCHITIS AND EMPHYSEMA.
D001991:Bronchitis; D029481:Bronchitis, Chronic; D004646:Emphysema; D004813:Epidemiology; D010336:Pathology; D011656:Pulmonary Emphysema
BRONCHITIS; EPIDEMIOLOGY; PATHOLOGY; PULMONARY EMPHYSEMA