1. Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
2. Department of Neurology, Kurashiki Heisei Hospital, Kurashiki, Japan
3. Department of Neurology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
4. Department of Neurology, Kawasaki Medical School, Kurashiki, Japan
5. Department of Neurosurgery, Ohnishi Neurological Center, Akashi, Japan
6. Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
7. Department of Neurology, Okayama City Hospital, Okayama, Japan
8. Department of Neurology, Himeji Central Hospital, Himeji, Japan
9. Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, Gifu, Japan
10. Division of Anaerobe Research, Life Science Research Center, Gifu University, Gifu, Japan
11. Louis Pasteur Center for Medical Research, Kyoto, Japan
12. European Medical Foundation, TIMA Est., Balzers, Liechtenstein