1. Department of Neurology Sapporo Medical University School of Medicine Sapporo Japan
2. Department of Neurology and Strokology Nagasaki University Hospital Nagasaki Japan
3. Medical Engineering Course, Department of Engineering, Faculty of Engineering Nagasaki Institute of Applied Science Nagasaki Japan
4. Disability Studies of Peripheral Nerve and Muscle, Graduate School of Health Sciences Sapporo Medical University Sapporo Japan