Critical pregnancy at altitude: A look at Latin America Adrián Avila-Hilari; Amilcar Tinoco-Solórzano; Jorge Vélez-Páez; Manuel Luis Avellanas-Chavala;

Correlation and concordance of SaO2/FiO2 and paO2/FiO2 ratios in patients with COVID-19 pneumonia who received non-invasive ventilation in two intensive care units¿ Alberto Belenguer-Muncharaz; Francisco Bernal-Julián; Héctor Hernández-Garcés; Irina Hermosilla-Semikina; Lluís Tormo-Rodriguez; Clara Viana-Marco;

Acute respiratory distress syndrome: a definition on the line A. González-Castro; E. Cuenca Fito; C. Gonzalez;