| Affiliation: | 1. Department of Preventive and Public Health Dentistry, Fukuoka Dental College, Japan;2. Department of Preventive Dentistry, Osaka University, Graduate School of Dentistry, Japan;3. Department of Oral Health Promotion, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan;4. Division of Sociological Approach in Dentistry, Department of Dental Sociology, Kanagawa Dental College, Japan;5. Division of Preventive Dentistry, Department of Oral Health Science, Graduate School of Medical and Dental Sciences, and WHO Collaborating Center for Translation of Oral Health Science, Niigata University, Japan;6. Tobacco Policy Research Division, Center for Cancer Control and Information Services, and WHO Collaborating Center for Reference on Smoking and Health, National Cancer Center, Japan |
