| Affiliation: | 1. Department of Otorhinolaryngology–Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea;2. Department of Otolaryngology – Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, Korea;3. Department of Otorhinolaryngology – Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea;4. Department of Otorhinolaryngology – Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul, Korea;5. Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Gyeonggi‐do, Korea;6. Department of Otorhinolaryngology – Head and Neck Surgery, Hallym University College of Medicine, Gangwon‐do, Korea;7. Department of Otorhinolaryngology – Head and Neck Surgery, Dankook University College of Medicine, Chungnam, Korea;8. Department of Otorhinolaryngology – Head and Neck Surgery, Ulsan University College of Medicine, Seoul, Korea;9. Department of Otorhinolaryngology–Head and Neck Surgery, Chungnam National University College of Medicine, Daejeon, Korea;10. Department of Otorhinolaryngology – Head and Neck Surgery, Pusan National University School of Medicine and Biomedical Research Institute, Busan, Korea |
