Ferrándiz Espadin, Renato, and Javier Cieza Zevallos. “Relationship Between Economical and Sociodemographic Health Indicators and Social Development With COVID-19 Mortality in the First 120 Days of the Pandemic”. Revista Médica Herediana, vol. 32, no. 1, Apr. 2021, pp. 20-32, doi:10.20453/rmh.v32i1.3944.