1. Department of Neuropathology; Hirosaki University Graduate School of Medicine; Hirosaki
2. Department of Pathology; Brain Research Institute
3. Department of Neuropathology; Aichi Medical University; Nagakute
4. Department of Neurology; Hokkaido University Graduate School of Medicine; Sapporo Japan
5. Department of Pathological Neuroscience; Center for Bioresource-based Researches; University of Niigata; Niigata