Gutierrez, Jessica Mireya. “Preconception Care: Gaps in Sexual and Reproductive Health Care El Salvador”. Alerta, Revista científica del Instituto Nacional de Salud 2, no. 2 (July 31, 2019): 173–180. Accessed July 1, 2024. https://lamjol.info/index.php/alerta/article/view/7938.