| Affiliation: | 1. Division of Preventive Dentistry, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan;2. Department of Preventive and Restorative Dental Sciences, University of California San Francisco, San Francisco, CA, USA;3. Department of Preventive Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan;4. Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan |
