1. Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
2. Department of Public Health, Juntendo University Graduate School of Medicine
3. Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba
4. Department of Public Health, Kochi University Medical School
5. Epidemiology and Prevention Group, Institute for Cancer Control, National Cancer Center
6. Institute of Epidemiology and Health Care, University College London