Ribeiro Macedo, L., D. Grillo Pacheco Lyra, T. Comerio, and E. L. Maciel. “The Challenge of Management and the National Immunization Plan for COVID-19 in Brazil”. Revista De Estudios Brasileños, vol. 9, no. 19, June 2023, pp. 57-67, doi:10.14201/reb20229195767.