title: [The etiologic structure of pertussis in the Estonian SSR].
mesh_terms: D002648:Child; D002675:Child, Preschool; D004957:Estonia; D006801:Humans; D014917:Whooping Cough / Q000382:microbiology*
vernacular_title: Etiologicheskaia struktura kokliusha v Estonskoĭ SS.