RT - journal article SR - Electronic T1 - SP - 2021-01-01 DO - 10.21055/0370-1069-2021-1-6-16 A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , YR - 2021 UL - https://covid19.neicon.ru/publication/4078 AB -