For citations:
Borisevich S.V., Podkuyko V.N., Pirozhkov A.P., Terent'ev A.I., Krasnyansky V.P., Rozhdestvensky E.V., Nazarov S.V., Kuznecov S.V. Evolution of means and principles of smallpox vaccination. Journal of NBC Protection Corps. 2020;4(1):66-85. (In Russ.) https://doi.org/10.35825/2587-5728-2020-4-1-66-85. EDN: epwbfh