García-Alvia, J., Mera-Zambrano, S., Ganchozo-Cantos, J. and Valencia-Lino, M. 2022. COVID 19 prevention in pregnant women. CIENCIAMATRIA. 8, 4 (Aug. 2022), 117-128. DOI:https://doi.org/10.35381/cm.v8i4.845.