Irreversible obstructive airway disease: definition, pathology and etiology.
D000397:Air Pollution; D001991:Bronchitis / Q000473:pathology; D002908:Chronic Disease; D006801:Humans; D011656:Pulmonary Emphysema / Q000473:pathology; D012140:Respiratory Tract Diseases / Q000209:etiology* / Q000473:pathology*; D012907:Smoking