title: Epidemiology of chronic bronchitis in the Baltic Republics of the USSR.
authors: V V
authors: VV
authors: Utkin
authors: I N
authors: IN
authors: Stepanov
authors: P A
authors: PA
authors: Shnipas
authors: L E
authors: LE
authors: Yannus
authors: G B
authors: GB
authors: Gintere
mesh_terms: D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000453:epidemiology*; D002980:Climate; D003430:Cross-Sectional Studies; D004957:Estonia; D005260:Female; D006801:Humans; D007844:Latvia; D008097:Lithuania; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology; D012907:Smoking / Q000009:adverse effects