1. Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
2. Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
3. Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
4. Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
5. Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
6. Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
7. Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
8. Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, China