| Affiliation: | 1. Graduate School of Media and Governance, Keio University, Fujisawa City, Kanagawa, Japan;2. Division of Clinical Epidemiology, Kyushu Dental University, Kitakyushu, Fukuoka, Japan;3. University of Florida College of Dentistry, Gainesville, FL, USA;4. Mikami Dental and Orthodontics Clinic, Tomakomai, Hokkaido, Japan;5. Matsumoto Dental Clinic, Okazaki, Aichi, Japan;6. Department of Clinical and Community Sciences, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA;7. Department of Restorative Dental Sciences, University of Florida College of Dentistry, Gainesville, FL, USA |
