1. Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
2. Department of Parasitology and Tropical Medicine, Pusan National University School of Medicine, Yangsan, Republic of Korea
3. Department of Otorhinolaryngology, Inje University Haeundae Paik Hospital, Republic of Korea
4. Department of Otorhinolaryngology and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea