1. Department of Otolaryngology, College of Medicine, Ajou University, Incheon 22332, Republic of Korea
2. Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16502, Republic of Korea
3. Department of Pathology, School of Medicine, Ajou University, Suwon 16502, Republic of Korea
4. Department of Molecular Science and Technology, Graduate School of Medicine, Ajou University, Suwon 16502, Republic of Korea
5. Department of Radiology, School of Medicine, Ajou University, Suwon 16502, Republic of Korea
6. Department of Biomedical Sciences, Graduate School of Medicine, Ajou University, Suwon 16502, Republic of Korea