C. A. . Lin, J. B. . Franco, S. C. da C. . Ribeiro, L. . Dadalto, and L. S. H. . Letaif, “Scarce Resource Allocation for Critically ill Patients During the COVID-19 Pandemic: A Public Health Emergency in São Paulo Brazil”, Clinics, vol. 76, p. e2191, Nov. 2021, doi: 10.6061/clinics/2021/e2191.