1. Department of Otorhinolaryngology‐Head and Neck Surgery Seoul National University Hospital Seoul Republic of Korea
2. Department of Otorhinolaryngology‐Head and Neck Surgery Seoul National University College of Medicine Seoul Republic of Korea
3. Department of Anesthesiology and Pain Medicine Chung‐Ang University Hospital, Chung‐Ang University College of Medicine Seoul Republic of Korea
4. Department of Anesthesiology and Pain Medicine Seoul National University Hospital, Seoul National University College of Medicine Seoul Republic of Korea
5. Cancer Research Institute Seoul National University Seoul Republic of Korea
6. Sensory Organ Research Institute Seoul National University Medical Research Center Seoul Republic of Korea