Concordance of the ions and GAP anion obtained by gasometry vs standard laboratory in critical care A. López, B. García, A. Gómez, L. González, N. González, L. Martín, G. Jaime

Correlation and validity of imputed PaO2/FiO2 and SpO2/FiO2 in patients with invasive mechanical ventilation at 2600m above sea level G. Ortiz, A. Bastidas, M. Garay-Fernández, A. Lara, M. Benavides, E. Rocha, A. Buitrago, G. Díaz, J. Ordóñez, L.F. Reyes

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