title: Chronic bronchitis in non-smokers. Introductory review.
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects; D001991:Bronchitis / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D008297:Male; D012130:Respiratory Hypersensitivity / Q000150:complications; D012907:Smoking
chemical_list: D000393:Air Pollutants