M. A. Davletova
Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)
Russian Federation

6 Miklouho-Maclay St., 117198 Moscow

Y. V. Stavtseva
Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University); Vinogradov City Clinical Hospital, RUDN University
Russian Federation

6 Miklouho-Maclay St., 117198 Moscow,

61 Vavilov St., 117292 Moscow

A. F. Safarova
Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)
Russian Federation

6 Miklouho-Maclay St., 117198 Moscow

T. M. Timofeeva
Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University); Vinogradov City Clinical Hospital, RUDN University
Russian Federation

6 Miklouho-Maclay St., 117198 Moscow,

61 Vavilov St., 117292 Moscow

Zh. D. Kobalava
Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)
Russian Federation

6 Miklouho-Maclay St., 117198 Moscow