1. Section for International Maternal and Child Health, Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
2. Epidemiology, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
3. Nutrition Academy, Ministry of Health, Yogyakarta, Indonesia
4. Community Health and Nutrition Research Laboratory, Faculty of Medicine, University of Gadjah Mada, Yogyakarta, Indonesia