1. Department of Neurology, Gachon University Gil Hospital, Incheon, Korea.
2. Department of Neurology, Konkuk University School of Medicine, Seoul, Korea.
3. Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
4. Department of Neurology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
5. Department of Neurology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
6. Department of Neurology, Dong-A University College of Medicine, Busan, Korea.
7. Department of Neurology and Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
8. Department of Neurology, Hallym University College of Medicine, Anyang, Korea.
9. Department of Neurology, Yeungnam University College of Medicine, Daegu, Korea.
10. Department of Neurology, Inje University Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
11. Department of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
12. Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
13. Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
14. Department of Neurology, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
15. Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
16. Department of Neurology, Inje University Seoul Paik Hospital, Seoul, Korea.
17. Department of Neurology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.
18. Department of Neurology, Pusan National University Yangsan Hospital, Yangsan, Korea.
19. Department of Neurology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
20. Department of Neurology, Chungbuk National University Hospital, Chungbuk National University School of Medicine, Cheongju, Korea.
21. Department of Neurology, Ewha Womans University School of Medicine and Ewha Womans University Mokdong Hospital, Seoul, Korea.
22. Department of Neurology, Yonsei University Wonju College of Medicine, Wonju, Korea.
23. Department of Neurology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea.
24. Department of Neurology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
25. Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
26. Department of Neurology, Keimyung University School of Medicine, Daegu, Korea.
27. Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Korea.
28. Department of Neurology, Changwon Samsung Hospital, Changwon, Korea.
29. Department of Neurology, Hanyang University College of Medicine, Seoul, Korea.
30. Department of Neurology, Kyung Hee University College of Medicine, Seoul, Korea.