1. Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
2. Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea.
3. Department of Biomedical Systems Informatics, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea.
4. Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Korea.
5. Department of Neurology, Chungnam National University Hospital, Daejeon, Korea.
6. Department of Neurology, Bundang Clinical Neuroscience Institute, Seoul National University Bundang Hospital, Seongnam, Korea.
7. Department of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.