1. From the Department of Neurology (J.Y., D.S., J.-H.B., Y.D.K., H.S.N., J.K., J.H.H.), Cardiology Division, Severance Cardiovascular Hospital (G.-R.H.), and Biostatistics Collaboration Unit (H.S.L.), Yonsei University College of Medicine, Seoul, Korea; and Department of Neurology, CHA Bundang Medical Center, CHA University, Seongnam, Korea (J.K.).