[Epizootiology of leukemia in cattle].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D002980:Climate; D007938:Leukemia / Q000453:epidemiology / Q000662:veterinary*; D002094:Republic of Belarus; D014455:Ukraine
K épizootologii leĭkoza krupnogo rogatogo skota.