1. Department of Urology, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang Province, P.R. China
2. Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, P.R. China
3. Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
4. A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia