1 Department of Neurology, The Catholic University of Korea, St. Vincent's Hospital, 93 Jungbodaero, Paldal-gu, Suwon, Gyeonggi-do, 16247, South Korea.
2 Department of Neurology and Research Institute of Clinical Medicine of Jeonbuk National University, 20 Geonji-ro, Deokjin-gu, Jeonju, 54907, Jeonju, South Korea. hgkang@jbnu.ac.kr.
3 Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, 20 Geonji-ro, Deokjin-gu, Jeonju, 54907, Jeonju, South Korea. hgkang@jbnu.ac.kr.