V. A. Byval’tsev
Irkutsk State Medical University, Ministry of Health of the Russian Federation; Railway Clinical Hospital on the station Irkutsk-Passazhirskiy of Russian Railways Ltd; Irkutsk Scientific Center of Surgery and Traumatology; Irkutsk State Medical Academy of Postgraduate Education.
Russian Federation

MD, PhD, DSc, Head of Neurosurgery Course of ISMU, Head of Neurosurgery Center of RCH, Head of Scientific and Clinical Department of Neurosurgery of ISCST, Professor of Chair ofTraumatology, Orthopedics and Neurosurgery of ISMAPE.

ul. Krasnogo Vosstaniya, 1, Irkutsk, 664003.

I. A. Stepanov
Irkutsk State Medical University, Ministry of Health of the Russian Federation.
Russian Federation

Postgraduate.

ul. Krasnogo Vosstaniya, 1, Irkutsk, 664003.

A. I. Kichigin
Irkutsk State Medical University, Ministry of Health of the Russian Federation.
Russian Federation

Postgraduate.

ul. Krasnogo Vosstaniya, 1, Irkutsk, 664003.