1. Department of Neurosurgery, First Affiliated Hospital, Harbin Medical University, Harbin, China
2. Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, China
3. Department of Neurosurgery, Zibo No.1 Hospital, Zi bo city, Shandong Province, China
4. School of Life Science, The Northeast Agricultural University, Harbin, China
5. Department of Neurosurgery, The Second People’s Hospital of Yibin, Sichuan, China