Awake pronation with helmet continuous positive airway pressure for COVID-19 acute respiratory distress syndrome patients outside the ICU: A case series G. Paternoster, C. Sartini, E. Pennacchio, F. Lisanti, G. Landoni, L. Cabrini

Effectiveness of Helmet-CPAP in mild to moderate coronavirus type 2 hypoxemia: An observational study Aurio Fajardo-Campoverdi, Juan José Orellana-Cáceres, Vicente Fernández, Felipe Poblete, Priscila Reyes, Kevin Rebolledo

High-flow nasal cannula therapy versus non-invasive ventilation in children with severe acute asthma exacerbation: An observational cohort study J. Pilar, V. Modesto i Alapont, Y.M. Lopez-Fernandez, O. Lopez-Macias, D. Garcia-Urabayen, I. Amores-Hernandez