title: The pathophysiology of chronic bronchitis and emphysema.
mesh_terms: D000402:Airway Obstruction / Q000503:physiopathology; D000403:Airway Resistance; D000818:Animals; D001991:Bronchitis / Q000503:physiopathology*; D002908:Chronic Disease; D006801:Humans; D008170:Lung Compliance; D010100:Oxygen; D010313:Partial Pressure; D011656:Pulmonary Emphysema / Q000503:physiopathology*; D012119:Respiration; D013147:Spirometry / Q000295:instrumentation
chemical_list: D010100:Oxygen