1. Neurology and Gyeongsang Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, South Korea
2. University Medical Center, Korea University College of Medicine, Seoul, South Korea
3. Neurology, Ulsan University College of Medicine of Neurology, The Catholic University of Korea College of Medicine
4. Neurology, Konkuk University School of Medicine, Seoul, South Korea
5. Pediatrics, Hanyang University School of Medicine, Seoul, South Korea