1. Irkutsk State Medical University, Ministry of Health of the Russian Federation
2. Irkutsk State Medical University, Ministry of Health of the Russian Federation; Railway Clinical Hospital on the Irkutsk-Passazhirskiy station, OJSC Russian Railways Medicine; Irkutsk Scientific Center for Surgery and Traumatology; Irkutsk State Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation