Rodríguez JA, Arévalo YG, Contreras AG, Peña L. Oral health services in users of the Salvadoran Social Security Institute. Alerta (San Salvador) [Internet]. 2019 Mar. 13 [cited 2024 Aug. 16];2(1):60-5. Available from: https://camjol.info/index.php/alerta/article/view/7528