1 Federal State Budgetary Educational Institution of Higher Education "Bashkir State Medical University" of the Ministry of Healthcare of the Russian Federation
2 City Clinical Hospital, №21
3 Рeoples' Friendship University of Russia (RUDN University)
4 Division of Spine Surgery, Central Clinical Hospital of the Russian Academy of Sciences
5 Tyumen State Medical University
6 The First Affiliated Hospital of Harbin Medical University