1. Department of Neurology; Seoul National University Hospital; Seoul South Korea
2. Program in Neuroscience; Neuroscience Research Institute of SNUMRC; College of Medicine; Seoul National University; Seoul South Korea
3. Department of Radiology; Seoul National University Hospital; Seoul South Korea
4. Department of Neurology; Chung-Ang University Hospital; Seoul South Korea
5. Department of Neurology; Armed Forces Capital Hospital; Sungnam South Korea