1. Medical College of Soochow University, Suzhou, China
2. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
3. Department of Critical Care Medicine, New Era Stroke Care and Research Institute, The PLA Rocket Force Characteristic Medical Center, Beijing, China
4. Department of Neurology, New Era Stroke Care and Research Institute, The PLA Rocket Force Characteristic Medical Center, Beijing, China
5. Department of Vascular Neurosurgery, New Era Stroke Care and Research Institute, The PLA Rocket Force Characteristic Medical Center, Beijing, China