1. From the Institute for Clinical Research (Y.J.J., S.Y.K., D.O., N.K.K.), Department of Neurology (O.J.K., S.H.O.), Department of Emergency Medicine (O.J.K.), CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea and Department of Neurology (B.S.S), Chonbuk National University Hospital and Medical School, Jeonju, Republic of Korea.