1. Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea.
2. Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
3. Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.
4. Sensory Organ Research Center, Seoul National University Medical Research Center, Seoul, Korea.
5. Graduate School of Immunology, Seoul National University, Seoul, Korea.