1. Clinical Research Center for Medicine, International University of Health and Welfare, Center for Brain and Cerebral Vessels, Sanno Medical Center
2. Department of Neurology, Tokyo Women’s Medical University
3. Department of Neurology and Stroke Center, Bichat Hospital
4. Department of Neurosurgery, Nakamura Memorial Hospital
5. Department of Neurosurgery, Akita University
6. National Cerebral and Cardiovascular Center
7. Department of Neurology, Osaka University Graduate School of Medicine
8. Department of Cerebrovascular Medicine and Neurology, National Hospital Organization Kyushu Medical Center
9. Yokohama General Hospital
10. Department of Stroke Neurology, National Hospital Organization Osaka National Hospital