Yurievna, Lapina, and Puzyrev Gennadievich. “Covid - 19: Morbidity Structure and Control Measures in Russia”. Asian Pacific Journal of Environment and Cancer 3, no. S1 (July 17, 2020): 13-15. Accessed April 26, 2024. http://waocp.com/journal/index.php/apjec/article/view/446.