title: [Chronic bronchitis as a social and medical problem].
mesh_terms: D000397:Air Pollution; D001775:Blood Circulation; D001991:Bronchitis / Q000209:etiology* / Q000503:physiopathology; D002908:Chronic Disease; D004777:Environment; D004787:Environmental Pollution; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008171:Lung Diseases / Q000209:etiology; D011660:Pulmonary Heart Disease / Q000209:etiology
vernacular_title: Khronicheskii bronkhit kak sotsial'naia i meditsinskaia problema.