1. Department of Otorhinolaryngology, Head and Neck Surgery, University of Yamanashi
2. Department of Otorhinolaryngology, Head and Neck Surgery, Kansai Medical University
3. Department of Otorhinolaryngology, Sapporo Medical University
4. Nippon Becton Dickinson Company, Ltd.
5. Thermo Fisher Scientific, Life Technologies Japan, Ltd.
6. Department of Otorhinolaryngology, Head & Neck Surgery, Faculty of Medical Sciences, University of Fukui
7. Department of Otorhinolaryngology, Faculty of Medicine, Shimane University