1. Department of Neurology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Yangsan, Korea.
2. Department of Neurology, Gyeongsan National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
3. Department of Neurology, Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, Busan, Korea.