1. Department of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu City, Aichi Prefecture, Japan
2. Department of Otorhinolaryngology, Aichi Medical University, Nagakute, Aichi Prefecture, Japan
3. Department of Otorhinolaryngology Cognitive and Speech Medicine, Nagoya University School of Medicine, Nagoya City, Aichi Prefecture, Japan
4. Department of Health and Medical Sciences, Aichi Shukutoku University, Aichi Prefecture, Japan
5. Department for Development of Preventive Medicine, National Center for Geriatrics and Gerontology, Obu City, Aichi Prefecture, Japan