1. Toyota Jyosui Mental Clinic
2. Department of Otorhinolaryngology, National Center for Geriatrics and Gerontology
3. Department of Neurosurgery, National Center for Geriatrics and Gerontology
4. Department of Otorhinolaryngology, Nishichita General Hospital
5. Department of Otorhinolaryngology, Aichi Medical University
6. Department of Otorhinolaryngology, Nagoya University School of Medicine
7. Ichinomiya Medical Treatment and Habilitation Center