I. J. B. do Nascimento, A. L. M. de Oliveira, P. H. C. Diniz, M. de F. Leite, and G. L. Oliveira, “Hospitalization, mortality and public healthcare expenditure in Brazil during the COVID-19 crisis: vulnerabilities in the spotlight”, Sao Paulo Med J, vol. 140, no. 2, pp. 290–296, Mar. 2022.