RT - journal article SR - Electronic T1 - SP - 2021-01-01 DO - 10.20514/2226-6704-2021-11-2-154-160 A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , YR - 2021 UL - https://covid19.neicon.ru/publication/6798 AB -