1. Department of Neurology; Gyeongsang National University Hospital; Jinju Korea
2. Department of Neurology; Kangbuk Samsung Medical Center Sungkyunkwan University School of Medicine; Seoul Korea
3. Department of Neurology; National Police Hospital; Seoul Korea
4. Department of Neurology; Bundan Jesaeng Hospital; Seongnam Korea
5. Neurology, Eulji University School of Medicine; Seoul Korea
6. Department of Neurology; Uijeongbu St.Mary's Hospital the Catholic University of Korea; Uijeongbu Korea
7. Department of Neurology; Chung-Ang University Hospital Chung-Ang University College of Medicine; Seoul Korea
8. Department of Neurology; Chuncheon Sacred Heart Hospital Hallym University College of Medicine; Chuncheon Korea
9. Department of Neurology; Hallym University Sacred Heart Hospital Hallym University College of Medicine; Anyang Korea
10. Department of Neurology; Ewha Womans University; Seoul Korea
11. Department of Neurology; Chungnam National University College of Medicine; Daejeon Korea
12. Department of Neurology; Dongtan Sacred Heart Hopital, Hallym University College of Medicine; Hwaseong Korea