Affiliations:
- Department of Otorhinolaryngology, Shinshu University School of
Medicine, Matsumoto, Nagano 390-8621, Japan
- Department of Otorhinolaryngology, International University of Health
and Welfare Mita Hospital, Tokyo, Japan
- Department of Plastic and Reconstructive Surgery, Shinshu University
School of Medicine, Matsumoto, Nagano 390-8621, Japan
- Department of Plastic and Reconstructive Surgery, Sapporo Medical
University School of Medicine, Sapporo, Hokkaido, Japan
- Department of Hearing Implant Sciences, Shinshu University School of
Medicine, Matsumoto, Nagano 390-8621, Japan