Affiliations

• ¹ Department of Neurology, Hanyang University Guri Hospital, Guri, Korea.
• ² Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
• ³ Department of Neurology, Anam Hospital, Korea University College of Medicine, Seoul, Korea.
• ⁴ Department of Neurology, Kangwon National University Hospital, Kangwon National University, Chuncheon, Korea.
• ⁵ Department of Neurology, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan, Korea.
• ⁶ Department of Neurology, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
• ⁷ Department of Neurology, Seoul National University Bundang Hospital, Seoul National University, Seongnam, Korea.
• ⁸ Department of Neurology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.