Created at	Source	Raw Value	Validated value
July 1, 2021, 2:30 a.m.	usa	1- Improvement in level of oxygenation;2- Need for ventilator support;3- Length of hospital stay;4- Development of complication;5- Mortality	1- Improvement in level of oxygenation;2- Need for ventilator support;3- Length of hospital stay;4- Development of complication;5- Mortality