1. Department of Neurology; Sungkyunkwan University School of Medicine, Samsung Medical Center; Seoul; Korea
2. Department of Preventive Medicine; Yonsei University College of Medicine; Seoul; Korea
3. Department of Radiology; Sungkyunkwan University School of Medicine, Samsung Medical Center; Seoul; Korea
4. Department of Biomedical Engineering; Hanyang University; Seoul; Korea
5. Department of Biomedical Engineering; Catholic University of Daegu; Seoul; Korea
6. Department of Nuclear Medicine; Sungkyunkwan University School of Medicine; Samsung Medical Center; Seoul; Pfizer Korea
7. Department of Nuclear Medicine; University of Ulsan College of Medicine; Asan Medical Center; Seoul; Korea
8. Department of Nuclear Medicine, Sungkyunkwan University School of Medicine, Samsung Medical Center; Seoul; Korea
9. Department of Neurology, University of Ulsan College of Medicine; Asan Medical Center; Seoul; Korea
10. Institute for Stroke and Dementia Research; Ludwig-Maximilians-University; Munich; Germany
11. Department of Brain Repair and Rehabilitation; UCL Institute of Neurology, Queen Square; London; United Kingdom