- Yu G Lyaev: I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
- Z K Gadzhieva: I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
- M A Gazimiev: I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
- E V Polyakova: I.M. Sechenov First Moscow State Medical University, Moscow, Russia.