Roque Henriquez, Joel Christian, et al. “Vaccination Against the Hepatitis B Virus in Newborns of Peruvian Women Participating in the Demographic and Family Health Survey, 2016”. Anales De La Facultad De Medicina, vol. 79, no. 3, Oct. 2018, pp. 218-24, https://doi.org/10.15381/anales.v79i3.15314.