MARMANILLO MENDOZA, G.; ZUĂ‘IGA MANRIQUE, R. E. J.; CORNEJO DEL VALLE, O. E.; PORTILLA CANQUI, L. A. SatO2/FiO2 rate versus PaO2/FiO2 rate for predicting mortality in patients with COVID-19 in a high-altitude hospital. ACTA MEDICA PERUANA, v. 38, n. 4, 4 Feb. 2022.