1. Department of Neurology Inje University Sanggye Paik Hospital Seoul South Korea
2. Department of Neurology Yonsei University College of Medicine Seoul South Korea
3. Biostatistics Collaboration Unit Yonsei University College of Medicine Seoul South Korea
4. Department of Neurology Yongin Severance Hospital, Yonsei University Health System Yongin South Korea
5. Department of Neurology Gangnam Severance Hospital, Yonsei University College of Medicine Seoul South Korea
6. Department of Neurology Inje Universitiy Busan Paik Hospital Seoul South Korea
7. Severance Biomedical Science Institute Yonsei University College of Medicine Seoul South Korea