T.A. BIKMULLIN, M.S. LEVIN, E.R. BARIEV, F.N. KHAKIMOVA Republican Clinical Hospital of the MH of RT, 138 Orenburgskiy Trakt, Kazan, Russian Federation, 420064  Bikmullin T.A. ― Cand. Med. Sc., Head of the Department of Neurosurgery №1, tel. +7-917-269-71-20, e-mail: bikmullin_timur@bk.ru Levin M.S. ― doctor of the Department of Neurosurgery №1, tel. (843) 231-21-83, e-mail: nho_rkb@mail.ru […]