1. FBHI Privolzhsky District Medical Center
2. SBHI NR City Clinical Hospital No. 39, Nizhny Novgorod
3. Research Laboratory of Neurosurgery of the Spine and Peripheral Nervous System, FSBI Almazov National Medical Research Center, St. Petersburg
4. FSBEI HE Privolzhsky Research Medical University, Nizhny Novgorod