Created at	Source	Raw Value	Validated value
March 27, 2022, 4 p.m.	usa	Measurement of the Change in Oxygen Requirement From Baseline	Measurement of the Change in Oxygen Requirement From Baseline
Dec. 21, 2020, 12:31 a.m.	usa	Measurement of the oxygen requirement	Measurement of the oxygen requirement
Oct. 26, 2020, 11:31 p.m.	usa	Evaluation of the total oxygen requirement (area under the curve) using daily supplemental oxygen flow (L/min) over 14 days	Evaluation of the total oxygen requirement (area under the curve) using daily supplemental oxygen flow (L/min) over 14 days