[On the limits and structure of the nosoareal of leptospirosis in the USSR].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D006801:Humans; D007922:Leptospirosis / Q000453:epidemiology*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*; D014586:USSR
O granitsakh i strukture nozoareala leptospirozov v SSSR.