1. Department of Public Health Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences Okayama Japan
2. Department of Psychology Faculty of Integrated Arts and Sciences Tokushima University Tokushima Japan
3. Department of Nursing Faculty of Medicine Shimane University Shimane Japan
4. Department of psychology Faculty of Education and Humanities Jumonji University Saitama Japan
5. Unit of Public Health and Preventive Medicine Faculty of Medicine Yokohama City University Kanagawa Japan
6. Department of Public Health and Hygiene Graduate School of Medicine University of the Ryukyus Okinawa Japan
7. Teikyo University Graduate School of Public Health Tokyo Japan