RT - journal article SR - Electronic T1 - SP - 2021-05-12 DO - 10.24115/s2446-622020217extra-b838p.1-6 A1 - , A1 - , A1 - , A1 - , A1 - , A1 - , YR - 2021 UL - https://covid19.neicon.ru/publication/7757 AB -