1. Department of Cardiovascular Medicine, Okayama University Hospital
2. Division of Cardiovascular Medicine, Toho University Ohashi Medical Center
3. Department of Cardiology, Keio University School of Medicine
4. Department of Cardiology, Fujita Health University
5. Stroke Center, Saiseikai Kumamoto Hospital
6. Department of Neurology, The Jikei University School of Medicine
7. Gifu Municipal Hospital
8. Department of Neurosurgery, National Cerebral and Cardiovascular Center
9. Department of Cardiology, International University of Health and Welfare Narita Hospital
10. Department of Stroke and Cerebrovascular Medicine, Kyorin University
11. Department of Neurology, Tokyo Saiseikai Central Hospital
12. Department of Stroke Neurology, NHO Osaka National Hospital