For citations:
Bavrina A.P., Saperkin N.V., Drugova O.V., Karjakin N.N., Kovalishena O.V. Comparative Characteristics of a Subsequent Morbidity Wave COVID-19 in Various Regions of the World. Epidemiology and Vaccinal Prevention. 2021;20(4):89-102. (In Russ.) https://doi.org/10.31631/2073-3046-2021-20-4-89-102
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