1. Department of Neurology; Kindai University, Faculty of Medicine; Osaka-sayama Japan
2. Department of Neurology; Teikyo University School of Medicine; Tokyo Japan
3. Department of Neurology, Graduate School of Medicine; Chiba University; Chiba Japan
4. Department of Neurology; Tokyo Medical and Dental University, Faculty of Medicine; Tokyo Japan
5. Department of Neurology; Saitama Medical Center, Saitama Medical University, Faculty of Medicine; Kawagoe Japan
6. Department of Neurology; Kyorin University, Faculty of Medicine; Mitaka Japan
7. Department of Neurology; Tokushima University, Faculty of Medicine; Tokushima Japan
8. Department of Neurology; Yamaguchi University, Faculty of Medicine; Ube Japan
9. Department of Neurology; National Defense Medical College; Tokorozawa Japan
10. Department of Neurology; Shinshu University, Faculty of Medicine; Matsumoto Japan
11. Department of Neurology; Fujita Health University School of Medicine, Faculty of Medicine; Toyoake Japan
12. Department of Neurology, Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
13. Department of Neurology; Kagoshima University, Faculty of Medicine; Kagoshima Japan
14. Department of Neurology; Kanazawa Medical University; Kahoku Japan
15. Department of Neurology; Kitazato University, Faculty of Medicine; Sagamihara Japan
16. Department of Neurology; Nagoya University, Graduate School of Medicine; Nagoya Japan