Valcarcel, B. , Avilez, J. L. , J Torres-Roman, S. , Poterico, J. A. , Bazalar-Palacios, J. , & La Vecchia, C. . (2020). The effect of early-stage public health policies on the transmission of COVID-19 in South American countries. Pan American Journal of Public Health. Cold Spring Harbor Laboratory Press. Retrieved from https://iris.paho.org/handle/10665.2/53011