[Geographic epidemiology of intestinal infections (several theoretical and methodologic problems)].
D004812:Epidemiologic Methods; D006801:Humans; D007239:Infections; D007410:Intestinal Diseases / Q000453:epidemiology*; D014586:USSR
Geograficheskaia épidemiologiia kishechnykh infektsiĭ (nekotorye teoreticheskie i metodicheskie voprosy).