1. Department of Neurology, National Hospital Organization Kumamoto Saishun Medical Center, Japan
2. Department of Neurology, National Hospital Organization Akita National Hospital, Japan
3. Clinical Research Management Center, Nagoya City University Hospital, Japan
4. Department of Neurology, National Hospital Organization Matsumoto Medical Center, Japan
5. Department of Neurology, National Hospital Organization Osaka Toneyama Medical Center, Japan