1. Centro de Investigación en Demografía y Salud (CIDS), UNAN-León, Nicaragua,
2. Centro de Investigación en Demografía y Salud (CIDS), UNAN-León, Nicaragua
3. Centro de Investigación en Demografía y Salud (CIDS), UNAN-León, Nicaragua, International Maternal and Child Health, Department of Women's and Children's Health, Uppsala University, University Hospital, Uppsala, Sweden
4. International Maternal and Child Health, Department of Women's and Children's Health, Uppsala University, University Hospital, Uppsala, Sweden