Created at	Source	Raw Value	Validated value
April 5, 2022, 8:30 p.m.	usa	Necessity and duration of non-invasive/ invasive ventilation	Necessity and duration of non-invasive/ invasive ventilation
May 31, 2021, 12:32 a.m.	usa	Duration of non-invasive/ invasive ventilation [days, hrs];Necessity for endotracheal intubation	Duration of non-invasive/ invasive ventilation [days, hrs];Necessity for endotracheal intubation
May 26, 2021, 12:32 a.m.	usa	Duration of non-invasive/ invasive ventilation;Necessity for endotracheal intubation	Duration of non-invasive/ invasive ventilation;Necessity for endotracheal intubation