[Some aspects of the study of natural foci of toxoplasmosis in the USSR].
D000818:Animals; D004197:Disease Reservoirs; D006801:Humans; D014123:Toxoplasmosis / Q000453:epidemiology*; D014586:USSR
Nekotorye itogi izucheniia prirodnoĭ ochagovosti toksoplazmoza v SSSR.