[Epizootiology of Marek's disease in chickens].
D000818:Animals; D001353:Avian Leukosis / Q000453:epidemiology*; D002645:Chickens; D007844:Latvia; D010523:Peripheral Nervous System Diseases / Q000453:epidemiology / Q000662:veterinary*; D011201:Poultry Diseases / Q000453:epidemiology*
K voprosu épizootologii bolezni Mareka u kur.