title: [Causes of chronic bronchitis in young patients].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000393:Air Pollutants / Q000009:adverse effects; D000395:Air Pollutants, Occupational / Q000009:adverse effects; D001991:Bronchitis / Q000209:etiology* / Q000628:therapy; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D010038:Otorhinolaryngologic Diseases / Q000150:complications; D012141:Respiratory Tract Infections / Q000150:complications; D012907:Smoking; D014777:Virus Diseases / Q000150:complications
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational
vernacular_title: Istoki khronicheskogo bronkhita u bol'nykh molodnogo vozrasta.