1. Department of Child Health, Medical School, Gadjah Mada University, Yogyakarta, Indonesia
2. Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Sweden
3. Department of Obstetrics and Gynaecology, Medical School, Gadjah Mada University, Yogyakarta, Indonesia
4. Community Health and Nutrition Research Laboratories, Medical School, Gadjah Mada University, Yogyakarta, Indonesia
5. Pediatrics, Department of Clinical Sciences, Umeå University, Sweden