1. Teaching and Research Bureau of Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University;
2. Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou;
3. Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou;
4. School of Medicine, Sun Yat-sen University, Shenzhen;
5. Department of Neurosurgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou;
6. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou;
7. Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou; and
8. Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China