1. Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Otorhinolaryngology, Imam Abdulrahman Bin Faisal University and King Fahd Hospital, Al-Khobar, Saudi Arabia.
3. The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea.
4. Korea Mouse Sensory Phenotyping Center, Seoul, Korea.
5. Medical Research Center, Yonsei University College of Medicine, Seoul, Korea.