1 Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan.
2 Department of Hearing Implant Sciences, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto City, 390-8621, Japan.
3 Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
4 Kanda ENT Clinic, Nagasaki Bell Hearing Center, Nagasaki, Japan.
5 TAKASAKI Ear Nose and Throat Clinic, Takasaki, Japan.
6 Department of Otolaryngology, Kobe City Medical Center General Hospital, Kobe, Japan.
7 Department of Otorhinolaryngology, Saitama School of Medicine, Moroyama, Japan.
8 Shiga Medical Center for Children, Shiga, Japan.
9 Department of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
10 Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo, Japan.
11 Department of Otorhinolaryngology, Toranomon Hospital, Tokyo, Japan.
12 Department of Otolaryngology-Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
13 Department of Otorhinolaryngology, Head and Neck Surgery, Hiroshima University Hospital, Hiroshima, Japan.
14 Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
15 Department of Otorhinolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan.
16 Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan.
17 Department of Otorhinolaryngology-Head and Neck Surgery, Yokohama City University School of Medicine, Yokohama, Japan.
18 Department of Otolaryngology-Head and Neck Surgery, Iwate Medical University, Morioka, Japan.
19 Department of Otolaryngology, Fukushima Medical University, Fukushima, Japan.
20 Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, Japan.
21 Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai, Japan.
22 Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
23 Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
24 Department of Otorhinolaryngology, Shiga University School of Medical Science, Otsu, Japan.
25 Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
26 Department of Otorhinolaryngology, Tokai University School of Medicine, Isehara, Japan.
27 Kawagoe Otology Institute, Kawagoe, Japan.
28 Department of Medical Genetics, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.
29 Department of Otolaryngology, Kochi University Medical School, Kochi, Japan.
30 Department of Otolaryngology, Kamio Memorial Hospital, Tokyo, Japan.
31 Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
32 Department of Otolaryngology, Aichi Children's Health and Medical Center, Obu, Japan.
33 Department of Hearing Implant Sciences, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto City, 390-8621, Japan. usami@shinshu-u.ac.jp.