1. Department of Neurology; Aomori Prefectural Central Hospital; Aomori City Aomori Japan
2. Department of Neurophysiology; Institute of Brain Science, Hirosaki University Graduate School of Medicine; Hirosaki City Aomori Japan
3. Department of Neuroanatomy, Cell Biology, and Histology; Institute of Brain Science, Hirosaki University Graduate School of Medicine; Hirosaki City Aomori Japan
4. Department of Neuropathology, Institute of Brain Science; Hirosaki University Graduate School of Medicine; Hirosaki City Aomori Japan