Affiliation: | 1. Department of Otolaryngology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea;2. Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea;3. Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea;4. Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Republic of Korea |