The treatment of chronic bronchitis and obstructive emphysema.
D000402:Airway Obstruction; D001991:Bronchitis / Q000628:therapy*; D029481:Bronchitis, Chronic; D004646:Emphysema; D006801:Humans; D011656:Pulmonary Emphysema / Q000628:therapy*
BRONCHITIS/therapy; PULMONARY EMPHYSEMA/therapy