1. Department of Neurology, Ewha Womans University School of Medicine, Seoul, Korea.
2. Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.
3. Department of Neurology, Keimyung University College of Medicine, Daegu, Korea.
4. Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.
5. Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
6. Department of Neurology, Catholic University of Daegu School of Medicine, Daegu, Korea.
7. Department of Neurology, Ajou University College of Medicine, Suwon, Korea.
8. Department of Neurology, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
9. Department of Neurology, Sanggye Paik Hospital, Seoul, Korea.
10. Department of Neurology, Pusan National University College of Medicine, Busan, Korea.
11. Department of Neurology, Hanyang University College of Medicine, Seoul, Korea.
12. Department of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
13. Department of Neurology, Sungkyunkwan University School of Medicine, Seoul, Korea.
14. Department of Neurology, Kyung Hee University College of Medicine, East-West Neo Medical Center, Seoul, Korea.
15. Department of Neurology, Dongguk University College of Medicine, Gyeongju, Korea.
16. Department of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.
17. Department of Neurology, CHA University, Pocheon, Korea.
18. Department of Neurology, NHIC Ilsan Hospital, Goyang, Korea.
19. Department of Neurology, Jeju National University College of Medicine, Jeju, Korea.
20. Department of Neurology, Yonsei University Wonju College of Medicine, Wonju, Korea.
21. Department of Neurology, Konkuk University College of Medicine, Seoul, Korea.
22. Department of Biological Science, Kongju National University, Gongju, Korea.