1. Division of Physiology and Neurobiology, Department of Neuroscience, Graduate School of Medicine, Kyoto University, Kyoto-shi, Kyoto 606-8501, Japan.
2. Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma-shi, Nara 630-0192, Japan.
3. Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto-shi, Kyoto 606-8507, Japan.
4. Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto-shi, Kyoto 606-8501, Japan.
5. Japan Society for the Promotion of Science, Chiyoda-Ku, Tokyo 102-0083, Japan.
6. Institute of Innovative Research, Tokyo Institute of Technology, Meguro-Ku, Tokyo 152-8550, Japan.
7. Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto-shi, Kyoto 606-8507, Japan.
8. Section of Viral Vector Development, National Institute for Physiological Sciences, Okazaki-shi, Aichi 444-8585, Japan.