1. Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650‑0017, Japan
2. Department of Genome Biology, Kindai University Faculty of Medicine, Osaka‑Sayama, Osaka 589‑8511, Japan
3. Department of Otorhinolaryngology, Mitsui Memorial Hospital, Tokyo 101‑8643, Japan
4. Department of Otorhinolaryngology ‑ Head and Neck Surgery, NTT Medical Center Tokyo, Tokyo 141‑8625, Japan
5. epartment of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113‑8655, Japan
6. Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka‑Sayama, Osaka 589‑8511, Japan
7. Department of Otorhinolaryngology, Izumi City General Hospital, Izumi, Osaka 594‑0073, Japan