Valencia-Ortega J, Saucedo-García RP, Díaz-Velázquez MF, Hernández-Valencia M. Coronavirus disease 2019 and pregnancy. Rev Med Inst Mex Seguro Soc. 2021;58(Supl 2):S285-S91. Accessed November 10, 2026. https://revistamedica.imss.gob.mx/index.php/revista_medica/article/view/3757