RT - journal article SR - Electronic T1 - SP - 2021-05-07 DO - 10.20996/1819-6446-2021-04-08 A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , YR - 2021 UL - https://covid19.neicon.ru/publication/8002 AB -