Ramos, Rodrigo, Cynthia de Oliveira Lage Ferreira, and Adenilso Simão. " The Survival Rate Among Unvaccinated, First Dose, and Second Dose Brazilian Hospitalized and ICU COVID Patients by Age Group." Anais do XXII Simpósio Brasileiro de Computação Aplicada à Saúde, Teresina, 2022. SBC, 2022, pp.48-59.