1. Department of Neurology, Bundang CHA Medical Center, CHA University, Seongnam, Republic of Korea
2. Department of Neurosurgery, Seoul National University Hospital, Republic of Korea
3. Department of Neurology, Kyung Hee University Hospital at Gangdong, Republic of Korea
4. Department of Neurology, Ajou University School of Medicine, Republic of Korea
5. Department of Neurology, Kangnam Sacred Heart Hospital, Seoul National University College of Medicine, Republic of Korea
6. Department of Neurology, Seoul National University Hospital, Sensory Organ Research Institute, Seoul National University Medical Research Center, Neuroscience Research Institute, Seoul National University College of Medicine, Republic of Korea