1. Neurosurgery, Neurology and Comprehensive Stroke Center, Kobe City Medical Center General Hospital
2. Neurosurgery, Ota Memorial Hospital
3. Neuroendovascular Therapy, Kohnan Hospital
4. Neurosurgery, Yamagata City Hospital Saiseikan
5. Neurosurgery, Cerebrovascular Medicine and Neurology, National Cerebral and Cardiovascular Center
6. Neurosurgery, Saiseikai Toyama Hospital
7. Neuroendovascular Surgery, National Hospital Organization Kyushu Medical Center
8. Neurosurgery, Gifu University
9. Neurosurgery, Nakamura Memorial Hospital
10. Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center
11. Division of Stroke Care Unit, National Cerebral and Cardiovascular Center
12. Neurosurgery, Niigata University
13. Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science
14. Neurosurgery, University of Tsukuba
15. Neurosurgery, Hyogo College of Medicine