Marmanillo Mendoza, G., R. E. J. Zuñiga Manrique, O. E. Cornejo Del Valle, and L. A. Portilla Canqui. “SatO2/FiO2 Rate Versus PaO2/FiO2 Rate for Predicting Mortality in Patients With COVID-19 in a High-Altitude Hospital”. ACTA MEDICA PERUANA, Vol. 38, no. 4, Feb. 2022, doi:10.35663/amp.2021.384.2033.