1. Department of Otorhinolaryngology; National Institute for Longevity Science; Obu Japan
2. Center for Comprehensive Care and Research on Memory Disorders; National Institute for Longevity Science; Obu Japan
3. Department of Otorhinolaryngology; Aichi Medical University; Nagakute Japan
4. Department of Otorhinolaryngology; Graduate School of Medicine; Nagoya University; Nagoya Japan
5. National Institute for Longevity Science; National Center for Geriatrics and Gerontology; Obu Japan