1. Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan.
2. Department of Health Informatics, Kyoto University, Kyoto, Japan.
3. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
4. Tsuda College, Tokyo, Japan.
5. National Research Institute for Child Health and Development, Tokyo, Japan.
6. Evidence and Programme Guidance, Department of Nutrition for Health and Development, World Health Organization, Geneva, Switzerland.
7. Global Health Nursing, Graduate School of Nursing Sciences, St. Luke's International University, Tokyo, Japan.