| Affiliation: | 1. Department of Otolaryngology–Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan;2. Department of Otolaryngology–Head and Neck Surgery, Nihon University School of Medicine, Tokyo, Japan;3. Department of Otolaryngology–Head and Neck Surgery, Hamamatsu Medical Center, Hamamatsu, Japan;4. Department of Otolaryngology–Head and Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan;5. Clinical Research, Innovation and Education Center, Tohoku University Hospital, Sendai, Japan;6. Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan;7. Department of Otolaryngology–Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan Sen-En Rifu Otological Surgery Center, Miyagi, Japan |
