1. Biomedical Research Institute, Pusan National University Hospital, Pusan, South Korea
2. Department of Neurology, Inha University School of Medicine, Incheon, South Korea
3. Department of Neurology, Ewha Womans University Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, South Korea
4. Department of Neurology, Cognitive Disorders and Dementia Center, Dong-A University College of Medicine and Institute of Convergence Bio-Health, Pusan, South Korea
5. Department of Neurology, Bobath Memorial Hospital, Seongnam, South Korea