1. Department of Oral Physiology; Osaka University Graduate School of Dentistry; Osaka Japan
2. Osaka University Hospital; Sleep Medicine Center; Osaka Japan
3. Department of Removable Prosthodontics; Osaka University Graduate School of Dentistry; Osaka Japan
4. Department of Fixed Prosthodontics; Osaka University Graduate School of Dentistry; Osaka Japan
5. Department of Oral Anatomy and Neurobiology; Osaka University Graduate School of Dentistry; Osaka Japan
6. Department of Oral and Maxillofacial Surgery II; Osaka University Graduate School of Dentistry; Osaka Japan