1. Department of Neurology, Yonsei University Severance Hospital, Seoul, Korea
2. Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, Korea
3. Department of Ophthalmology, Inha University Hospital, Incheon, Korea
4. Department of Ophthalmology, Hanyang University Guri Hospital, Guri, Korea
5. Department of Otorhinolaryngology, Catholic University Seoul St. Mary’s Hospital, Seoul, Korea
6. Department of Otorhinolaryngology, Chung-Ang University Hospital, Seoul, Korea
7. Cardiovascular Research Institute, Korea University, Seoul, Korea
8. Department of Neurology, Goodsleep Clinic, Seoul, Korea
9. Department of Laboratory Medicine, Samsung Medical Center, Seoul, Korea
10. Department of Neurology, Seoul National University Hospital, Seoul, Korea