1. Department of Neurology National Hospital Organization Sendai Nishitaga Hospital Sendai Japan
2. Department of Dermatology Tohoku University Graduate School of Medicine Sendai Japan
3. Department of Pathology and Laboratory Medicine National Hospital Organization Sendai Medical Center Sendai Japan
4. Department of Pathology Tokyo Metropolitan Geriatric Hospital Tokyo Japan
5. Department of Neurology Tohoku University Graduate School of Medicine Sendai Japan
6. Department of Pharmacology Tohoku University Graduate School of Pharmaceutical Sciences Sendai Japan
7. Department of Cognitive and Motor Aging Tohoku University Graduate School of Medicine Sendai Japan