1. Department of Nursing Baika Women's University (Hirokawa) Ibaraki Osaka Japan
2. Public Health, Department of Social Medicine Osaka University Graduate School of Medicine Suita Osaka Japan
3. Department of Epidemiology Fukushima Medical University School of Medicine Fukushima Japan
4. Osaka Center for Cancer and Cardiovascular Disease Prevention Osaka Japan
5. Tokyo Metropolitan Institute of Gerontology Tokyo Japan