Fig. 1From: Rapidly improving acute respiratory distress syndrome in COVID-19: a multi-centre observational studyDistribution of included patients with acute respiratory distress (ARDS) across the three participating study sites. Out of the intubated patients with new coronavirus disease (COVID-19) who were hospitalized in the participating intensive care units during the study period, six patients (three from Athens and three from Larissa) did not meet the oxygenation criterion [i.e., they had partial pressure of arterial oxygen to fraction of inspired oxygen ratio (PaO2:FiO2) more than 300] of the Berlin definition of ARDS on the day of intubation and therefore were excluded from our studyBack to article page