1. Institute of Antimicrobial Chemotherapy (Smolensk, Russia)
2. A.N. Ryzhikh State Scientific Center of ColoproctoloA.N. Ryzhikh State Scientific Center of Coloproctology (Moscow, Russia)gy, Moscow, Russia
3. Perm State Medical University named after E.A. Wagne (Perm, Russia)
4. National Medical Research Center of Neurosurgery named after N.N. Burdenko (Moscow, Russia)
5. A.V. Vishnevsky National Medical Research Center of Surgery (Moscow, Russia)
6. A.N. Bakulev National Medical Research Center of Cardiovascular Surgery (Moscow, Russia)