1. Graduate School of Health Sciences Gunma University Gunma Japan
2. Center for Food Science and Wellness Gunma University Gunma Japan
3. Epidemiology and Prevention Group Center for Public Health Sciences National Cancer Center Tokyo Japan
4. Department of Epidemiology and Prevention National Center for Global Health and Medicine Tokyo Japan
5. Department of Diabetes, Metabolism and Endocrinology Ichikawa Hospital International University of Health and Welfare Chiba Japan