1. Department of Neurology, Tokyo Medical University, Japan
2. Department of Neurology, Juntendo University Shizuoka Hospital, Japan
3. Department of Neurology, Toho University Omori Medical Center, Japan
4. Division of Neurology, Department of Medicine, Nihon University School of Medicine, Japan
5. Department of Neurology, Tokyo Women's Medical University, Japan
6. Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Japan
7. Department of Neurology, Japanese Red Cross Medical Center, Japan
8. Department of Neurology, Juntendo University School of Medicine, Japan
9. Department of Neurology, Jikei University School of Medicine, Japan
10. Department of Neurology, Tokyo Medical University Hachioji Medical Center, Japan
11. Department of Neurology, Institute of Geriatrics, Tokyo Women's Medical University, Japan
12. Department of Neurology, Showa University, Japan