1. Department of Neurology, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
2. Department of Neurology, Ilsan Paik Hospital, Inje University, Goyang, Republic of Korea
3. Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
4. Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
5. Department of Neurology, Eulji General Hospital, Eulji University, Seoul, Republic of Korea
6. Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
7. Department of Neurology, Inha University Hospital, Incheon, Republic of Korea
8. Department of Neurology, Catholic University, St Mary’s Hospital, Seoul, Republic of Korea
9. Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
10. Department of Neurology, Korea University Guro Hospital, Seoul, Republic of Korea
11. Department of Neurology, Soonchunhyang University Hospital, Seoul, Republic of Korea