1. From the Department of Neurology, Gangnam Severance Hospital (B.-H.C., J.H.K., J.K., K.-Y.L.), Yonsei University College of Medicine, Seoul, Korea
2. Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul (B.-H.C.).
3. Department of Radiology, Gangnam Severance Hospital (S.H.S.), Yonsei University College of Medicine, Seoul, Korea
4. Healthcare Research Team, Health Promotion Center, Gangnam Severance Hospital (S.J.B.), Yonsei University College of Medicine, Seoul, Korea
5. Biostatistics Collaboration Unit (H.S.L.), Yonsei University College of Medicine, Seoul, Korea
6. Severance Institute for Vascular and Metabolic Research (K.-Y.L.), Yonsei University College of Medicine, Seoul, Korea