Duration of the first prone positioning maneuver and its association with 90-day mortality in patients with acute respiratory failure due to COVID-19: A retrospective study of time terciles Alejandro González-Castro; Carmen Huertas Martín; Elena Cuenca Fito; Yhivian Peñasco; Camilo Gonzalez; Juan Carlos Rodríguez Borregán;

Electrical impedance tomography: Usefulness for respiratory physiotherapy in critical illnesses Ricardo Arriagada; María Consuelo Bachmann; Constanza San Martin; Michela Rauseo; Denise Battaglini;

Post-pandemic acute respiratory distress syndrome: A New Global Definition with extension to lower-resource regions Elisa Estenssoro; Iván González; Gustavo A. Plotnikow;