1. From the Department of Neurology, Ajou University School of Medicine, Suwon, South Korea (J.M.H., J.S.L.); Department of Neurology, Chungnam National College of Medicine, Daejon, South Korea (H.-J.S., H.-S.J.); and Department of Neurology and Neurosurgery, University of Texas Health Science Center at Houston (J.M.H., H.A.C., K.L.).