1. From the Department of Neurology (Y.K.), Eulji University College of Medicine; Department of Neurology (J.H.P.), Dongguk University Gyeongju Hospital, Gyeongju, Korea; Department of Biostatistics (JiSung Lee, Juneyoung Lee), College of Medicine, Korea University, Seoul, Korea; and Departments of Neurology and Neurosurgery (M.H.Y., S.-B.K., M.-K.H., C.W.O., H.-J.B.), Stroke Center, Seoul National University Bundang Hospital, Seongnam, Korea.