1. Department of Stroke and Cerebrovascular Diseases, National Cerebral and Cardiovascular Center, Suita, Japan
2. Department of Neurology, National Hospital Organization Minami Kyoto Hospital, Joyo, Japan
3. Department of Investigative Radiology, National Cerebral and Cardiovascular Center, Suita, Japan
4. Department of Regenerative Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
5. Institute of Neuroscience, Newcastle University Campus for Ageing & Vitality, Newcastle, UK