[The epizootology of cattle leukemia].
D000367:Age Factors; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D007938:Leukemia / Q000662:veterinary*; D012621:Seasons; D014586:USSR
Voprosy épizootologii leĭkoza krupnogo rogatogo skota.