1. Cerebrovascular Department of Interventional Center, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan province, China;
2. Neurosurgery Department of Stroke Center, Henan Provincial People's, Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China;
3. Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, International Neuroscience Institute (China-INI), Beijing, China;
4. Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, Beijing, China;
5. Changhai Hospital Affiliated to Naval Medical University, Shanghai, China;
6. Shanghai Donglei Brain Hospital, Shanghai, China;
7. Peking University International Hospital, Beijing, China;
8. First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;
9. First Affiliated Hospital of Xinjiang Medical University, Urumqi, China;
10. Qilu Hospital of Shandong University, Jinan, China;
11. Nanfang Hospital, Southern Medical University, Guangzhou, China;
12. First Affiliated Hospital of Nanchang University, Nanchang, China;
13. Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China;
14. Second Affiliated Hospital of Nanchang University, Nanchang, China;
15. First Affiliated Hospital of Harbin Medical University, Harbin, China;
16. Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China;