title: [Medical and social characteristics of patients with chronic obstructive pulmonary diseases].
authors.forename: T Iu
authors.initials: TIu
authors.lastname: Levashova
authors.forename: L K
authors.initials: LK
authors.lastname: Kvartovkina
mesh_terms: D000328:Adult; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology* / Q000209:etiology; D012307:Risk Factors; D012426:Russia / Q000453:epidemiology; D012907:Smoking / Q000009:adverse effects; D012923:Social Class; D014505:Urban Population