[Epizootiology of leukemia in cattle].
D000818:Animals; D001947:Breeding; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000235:genetics; D007938:Leukemia / Q000453:epidemiology / Q000235:genetics / Q000662:veterinary*; D012426:Russia
K épizootologii leĭkoza krupnogo rogatogo skota