title: [Chronic bronchitis: the concept of its step-by-step development, its essence and significance (a lecture)].
authors.forename: A N
authors.initials: AN
authors.lastname: Kokosov
mesh_terms: D001991:Bronchitis / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D002908:Chronic Disease; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D009784:Occupational Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D012307:Risk Factors
vernacular_title: Khronicheskiĭ bronkhit: kontseptsiia étapnogo razvitiia, ee sut' i znachenie (lektsiia).