1. Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
2. Department of Neurosurgery Nakamura Memorial Hospital Sapporo Japan
3. Department of Stroke Medicine Kawasaki Medical School Kurashiki Japan
4. Department of Neurology Kyoto Second Red Cross Hospital Kyoto Japan
5. Department of Neurology Tokyo Saiseikai Central Hospital Tokyo Japan
6. Department of Neurology Kumamoto Red Cross Hospital Kumamoto Japan
7. Department of Cerebrovascular Medicine and Neurology National Hospital Organization Kyushu Medical Center Fukuoka Japan
8. Department of Neurology Kansai Medical University Hirakata Japan
9. Division of Neurology, Department of Internal Medicine Saga University Faculty of Medicine Saga Japan
10. Department of Neurology Keio University School of Medicine Tokyo Japan
11. Department of Strokology Stroke Center, St Marianna University Toyoko Hospital Kawasaki Japan
12. Division of Neurology, Department of Internal Medicine St Marianna University School of Medicine Kawasaki Japan
13. Institute for Biomedical Sciences Iwate Medical University Yahaba Japan
14. Department of Diagnostic Imaging Hokkaido University Graduate School of Medicine Sapporo Japan
15. Department of Radiology Saga University Faculty of Medicine Saga Japan
16. Department of Neurology Yamagata Prefectural Central Hospital Yamagata Japan
17. Department of Neurology and Neurological Science Tokyo Medical and Dental University Tokyo Japan
18. Department of Stroke and Cerebrovascular Medicine Kyorin University Mitaka Japan
19. Department of Neurology National Cerebral and Cardiovascular Center Suita Japan