1. Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan.
2. Department of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany.
3. Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
4. Department of Laboratory Medicine and Pathology (Neuropathology), Tokyo Metropolitan Neurological Hospital, Tokyo, Japan.