Herrera-Añazco, Percy, et al. “Prevalence and Factors Associated With the Intention to Vaccinate Against COVID-19 in Peru”. Revista Peruana De Medicina Experimental Y Salud Pública, vol. 38, no. 3, Aug. 2021, pp. 381-90, https://doi.org/10.17843/rpmesp.2021.383.7446.