1. Department of Neurology, Catholic University of Korea (A.-H.C., M.H.L.), College of Medicine, Seoul, Republic of Korea.
2. Hanyang University (H.S.K., J.-H.P.), College of Medicine, Seoul, Republic of Korea.
3. Kyung Hee University (S.H.H.), College of Medicine, Seoul, Republic of Korea.
4. Korea University (S.Y.), College of Medicine, Seoul, Republic of Korea.
5. Asan Medical Center University of Ulsan (S.U.K.), College of Medicine, Seoul, Republic of Korea.