1. Department of Clinical Trial and Clinical Epidemiology, University of Tsukuba Faculty of Medicine
2. Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
3. Department of Public Health Medicine, University of Tsukuba Faculty of Medicine
4. Center for Advanced Medicine and Clinical Research, Nagoya University Graduate School of Medicine
5. Department of Preventive Medicine, Nagoya University Graduate School of Medicine
6. Department of Public Health, Hokkaido University Graduate School of Medicine