1. Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
2. Department of Neurology, Affiliated Hospital of Nantong University, Nantong, China
3. Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
4. Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China