1. Pusan National University Medical Research InstitutePusan National University School of Medicine, Pusan National University Busan Republic of Korea
2. Department of Otorhinolaryngology–Head and Neck SurgeryPusan National University School of Medicine, Pusan National University Busan Republic of Korea
3. Department of Otolaryngology–Head and Neck SurgerySamsung Changwon Hospital, Sungkyunkwan University School of Medicine Changwon Republic of Korea
4. Department of Otorhinolaryngology–Head and Neck SurgeryPusan National University School of Medicine and Biomedical Research Institute, Pusan National University Yangsan Hospital Yangsan Gyeongnam Republic of Korea
5. Division of Endocrinology and Metabolism, Department of Internal MedicinePusan National University Hospital Busan Republic of Korea
6. Department of Pathology, Kangbuk Samsung HospitalSungkyunkwan University School of Medicine Seoul Republic of Korea
7. Department of Surgery, Division of Otolaryngology–Head and Neck SurgeryUniversity of Wisconsin‐Madison Madison Wisconsin U.S.A.