1. Department of Neurology, Institute for Postgraduate Education, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
2. Department of Neurology, Psychiatry, Manual Medicine and Medical Rehabilitation, Volgograd State Medical University, Volgograd, Russia
3. Department of Neurology, Neurosurgery with a course in medical genetics, Volgograd State Medical University, Volgograd, Russia