Affiliations

• ¹ Department of Neurology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea.
• ² Department of Neurology, Ewha Womans University Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Korea.
• ³ Department of Neurology, College of Medicine, Hanyang University, Seoul, Korea.
• ⁴ Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
• ⁵ Department of Neurology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.
• ⁶ Department of Neurology, College of Medicine, Gachon University Gil Medical Center, Incheon, Korea.
• ⁷ Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
• ⁸ Department of Neurology, National Medical Center, Seoul, Korea.
• ⁹ Dr Shin's Neurology Clinic, Wonju, Korea.
• ¹⁰ Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
• ¹¹ Department of Neurology, Konyang University Hospital, Daejeon, Korea.
• ¹² Department of Neurology, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea.
• ¹³ Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
• ¹⁴ Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Korea.
• ¹⁵ Department of Neurology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea.
• ¹⁶ Department of Neurology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.