1. Division of Stem Cell Biology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
2. Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
3. Pharmaceutical & Healthcare Research Laboratories, R&D Management Headquarters, Fujifilm Corporation, Kaisei-machi, Kanagawa, Japan
4. Safety Evaluation Center, Ecology & Quality Management Division, CSR Division, Fujifilm Corporation, Minamiashigara, Kanagawa, Japan
5. Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Koto-ku, Tokyo, Japan