1. Departments of Neurosurgery,
2. Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
3. Human Brain Research Center and
4. PRESTO, Japan Science of Technology Agency, Saitama; and
5. Neurology, and
6. Radiology, Tazuke Kofukai Medical Research Institute and Kitano Hospital, Osaka;