EXTRADURAL SPINAL CORD HEMANGIOBLASTOMA: A CASE REPORT AND LITERATURE REVIEW oleh Nikolay A. Konovalov, Stanislav U. Timonin, Lyudmila V. Shishkina, Anton G. Nazarenko, Dmitry A. Asyutin, Roman O. Onoprienko, Vasyli V. Korolishin, Bahromhon A. Zakirov, Maria M. Martynova, Stanislav V. Kaprovoy, Arthur L. Pogosyan, Albert A. Batyrov, Islam U. Cherkiev, Evgeni S. Brenyk