1. Department of Neurology, Keimyung University School of Medicine, Daegu, Republic of Korea
2. Department of Neurology, School of Medicine, Soonchunhyang University, Bucheon, Republic of Korea
3. Department of Psychiatry, Shatin Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
4. Department of Neurology, School of Medicine, Soonchunhyang University, Seoul, Republic of Korea
5. Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea