RT - journal article SR - Electronic T1 - SP - 2021-01-04 DO - 10.9734/jpri/2020/v32i3831017 A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , YR - 2021 UL - https://covid19.neicon.ru/publication/10134 AB -