Affiliation: | 1. Department of Neurology, Sungkyunkwan University School of Medicine, Samsung Medical Center, , Seoul, Korea;2. Department of Biomedical Engineering, Hanyang University, , Seoul, Korea;3. Department of Neurology, Inha University School of Medicine, , Incheon, Korea;4. Department of Neurology, Gachon University Gil Medical Center, , Incheon, Korea |