1. Department of Pathology and Molecular Diagnostics Graduate School of Medical Sciences Nagoya City University NagoyaJapan
2. Department of Maxillofacial Surgery School of Dentistry Aichi‐Gakuin University NagoyaJapan
3. Department of Anatomic Pathology Tokyo Medical University TokyoJapan
4. Department of Pathology Shizuoka General Hospital ShizuokaJapan
5. Department of Diagnostic Pathology Fujita Health University School of Medicine Bantane Hospital NagoyaJapan
6. Department of Anatomic Pathology Graduate of School of Medical Science Kyushu University FukuokaJapan
7. Department of Otolaryngology‐Head and Neck Surgery Faculty of Medicine and Graduate School of Medicine Hokkaido University SapporoJapan
8. Department of Otorhinolaryngology, Head and Neck Surgery Tokyo Medical University TokyoJapan
9. Department of Otolaryngology‐Head and Neck Surgery Tokai University School of Medicine IseharaJapan
10. Department of Otorhinolaryngology, Head and Neck Surgery Graduate School of Medical Sciences Nagoya City University NagoyaJapan
11. Department of Head and Neck Surgery Aichi Cancer Center Hospital NagoyaJapan
12. Department of Otolaryngology, Head and Neck Surgery Kansai Medical University HirakataJapan
13. Department of Otorhinolaryngology‐Head and Neck Surgery Osaka Medical and Pharmaceutical University TakatsukiJapan
14. Department of Head and Neck Oncology and Surgery International University of Health and Welfare Mita Hospital TokyoJapan
15. Department of Otolaryngology‐Head and Neck Surgery Kobe University Graduate School of Medicine Kobe Japan