Affiliation: | 1. Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science, , Fukuoka, Japan;2. Department of Health Management, School of Oral Health Science, Kyushu Dental College, , Kitakyushu, Japan;3. Department of Biostatistics, Faculty of Medicine, Oita University, , Oita, Japan;4. Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, , Fukuoka, Japan;5. Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, , Fukuoka, Japan |