1. Department of Neuropathology Hirosaki University Graduate School of Medicine Hirosaki Japan
2. Department of Neurology Hirosaki University Graduate School of Medicine Hirosaki Japan
3. Department of Cardiology Respiratory Medicine and Nephrology, Tsugaru General Hospital Goshogawara Japan
4. Department of Pathology and Bioscience Hirosaki University Graduate School of Medicine Hirosaki Japan