1. Department of Otorhinolaryngology-Head and Neck Surgery, National Medical Center, Seoul, Republic of Korea.
2. Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
3. Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea.
4. Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul, Republic of Korea.
5. Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Seoul National University, Seoul, Republic of Korea.