1. Institute of Human Culture Studies, Otsuma Women's University
2. Department of Food Science, Faculty of Home Economics, Otsuma Women's University
3. Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development
4. Department of Social Medicine, National Research Institute for Child Health and Development, National Center for Child Health and Development
5. Department of Obstetrics and Gynecology, Saitama Medical University
6. Department of Global Health Promotion, Tokyo Medical and Dental University