[Controlled epizootiological experiments and the optimization of specific prophylaxis].
D000820:Animal Diseases / Q000517:prevention & control*; D000818:Animals; D004341:Drug Evaluation / Q000662:veterinary; D007114:Immunization / Q000662:veterinary; D008433:Mathematics; D010919:Placebos; D012107:Research Design; D014611:Vaccination / Q000662:veterinary*
D010919:Placebos
Kontroliruemye épizootologicheskie opyty i optimizatsiia spetsificheskoĭ profilaktiki.