1. Department of Neuropathology Research Institute for Brain and Blood Vessels – Akita Akita Japan
2. Department of Neurosurgery Tokyo Women's Medical University Tokyo Japan
3. Department of Neurosurgery Moriyama Memorial Hospital Tokyo Japan
4. Department of Pathology and Laboratory Medicine (Neuropathology) David Geffen School of Medicine and UCLA Medical Center Los Angeles California USA
5. Department of Neurology David Geffen School of Medicine and UCLA Medical Center Los Angeles California USA