Before revision:  Results: The correlation between case-fatality ratios and rates of mortality for COVID-19  in different regions of the Russian Federation on Sep 6 , 2020 is 0.69 (0.56,0.79).
After revision:  Results: The correlation between case-fatality ratios and rates of mortality for COVID-19 in different regions of the Russian Federation is 0.68 (0.55,0.78). The region with both the highest COVID-19 mortality rate per 100 , 2020 is 0.69 (0.56,0.79).