1. Division of Neurology, Department of Internal Medicine, Saga University Faculty of Medicine, Japan
2. J. Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital Stroke Research Center, Harvard Medical School, USA
3. Department of Radiology, Saga University Faculty of Medicine, Japan
4. Center for Comprehensive Community Medicine, Saga University Faculty of Medicine, Japan
5. Department of Neurosurgery, Yuai-Kai Oda Hospital, Japan
6. Stroke Research Group, Department of Brain Repair & Rehabilitation, UCL Institute of Neurology and The National Hospital for Neurology and Neurosurgery, UK