1. Department of Public Health, Dokkyo Medical University School of Medicine
2. Department of Public Health Medicine, Faculty of Medicine, University of Tsukuba
3. Public Health, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University
4. Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health
5. Department of Public Health, Aichi Medical University
6. Department of Public Health, Hokkaido University Graduate School of Medicine