Early awake proning in critical and severe COVID-19 patients undergoing noninvasive respiratory support: A retrospective multicenter cohort study Roberto Tonelli; Lara Pisani; Luca Tabbì; Vittoria Comellini; Irene Prediletto; Riccardo Fantini; Alessandro Marchioni; Dario Andrisani; Filippo Gozzi; Giulia Bruzzi; Linda Manicardi; Stefano Busani; Cristina Mussini; Ivana Castaniere; Ilaria Bassi; Marco Carpano; Federico Tagariello; Gabriele Corsi; Roberto d¿Amico; Massimo Girardis; Stefano Nava; Enrico Clini;

Use of Helmet CPAP in COVID-19 ¿ A practical review H. Amirfarzan; M. Cereda; T.G. Gaulton; K.B. Leissner; A. Cortegiani; R. Schumann; C. Gregoretti;

Non-invasive respiratory support paths in hospitalized patients with COVID-19: proposal of an algorithm J.C. Winck; R. Scala;