1. Neurology Laboratory, Seoul National University Hospital, Seoul, Korea
2. Department of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
3. Otorhinolaryngology Laboratory, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul, Korea
4. Otorhinolaryngology Laboratory, Chung-Ang University Hospital, Seoul, Korea
5. Clinical Pathology Laboratory, Samsung Medical Center, Seoul, Korea
6. Institute of Health Science, College of Health Science, Korea University, Seoul, Korea
7. Neurology Laboratory, Goodsleep Neurology Clinic, Seoul, Korea
8. Department of Health and Safety Convergence Science, Graduate School, Korea University, Seoul, Korea
9. BK21 FOUR R&E Center for Learning Health System, Korea University, Seoul, Korea