1. Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Institute of Neuroscience, Guangdong Academy of Medical Sciences, Guangzhou, China.
2. Institute of Cerebrovascular Disease Research and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China.
3. Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
4. Department of Neurosurgery, Uludag University School of Medicine, Bursa, Turkey.
5. Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California, USA.
6. Department of Neurosurgery, Loma Linda University, Loma Linda, California, USA.
7. Beijing Geriatric Medical Research Center and Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China.