1. Department of Neurosurgery; Graduate School of Medicine, Kyoto University; Kyoto Japan
2. Department of Clinical Application, Center of iPS Cell Research and Application; Kyoto University; Kyoto Japan
3. Department of Neurosurgery, Faculty of Medicine; Universitas Padjadjaran; Bandung Indonesia
4. Department of Neurosurgery, Institute of Biological Sciences; Tokushima University; Tokushima Japan
5. Department of Neurology, Graduate School of Medicine; Kyoto University; Kyoto Japan