1. Department of Neurological Surgery, University of Chicago, Chicago, IL 60637, USA
2. Institute of Biomedical Systems of National Research University of Electronic Technology (MIET), 124498 Moscow, Russia
3. Institute of Bionic Technologies and Engineering of I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
4. Northern Michigan University, Marquette, MI 49855, USA