1. From the Departments of Neurology (Y.S.K., H.K., S.M.L., S.Y.M.) and Otolaryngology (Y.-H.C.), Ajou University School of Medicine, Suwon; Department of Laboratory Medicine (Y.-E.K.), Hanyang University College of Medicine, Seoul; Department of Neurology (H.J.K.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul; Department of Neurology (N.-Y.J.), Pusan National University Yangsan Hospital, Research Institute for Convergence of Biomedical Science and Technology; and...