1. Division of Rehabilitation Medicine, Murata Hospital, Osaka, Japan
2. Department of Rehabilitation Medicine, Murata Hospital, Osaka, Japan
3. Department of Neurosurgery, Murata Hospital, Osaka, Japan
4. Graduate School of Core Ethics and Frontier Sciences, Ritsumeikan University, Kyoto, Japan
5. Department of Regenerative Systems Neuroscience, Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan