Created at	Source	Raw Value	Validated value
June 25, 2024, noon	usa	inclusion criteria: * ages from 45-75 years old * covid-19 patients with spo2 \> 85 * oxygen face mask or a reservoir mask	inclusion criteria: * ages from 45-75 years old * covid-19 patients with spo2 \> 85 * oxygen face mask or a reservoir mask
Aug. 27, 2022, 9 p.m.	usa	inclusion criteria: ages from 45-75 years old covid-19 patients with spo2 > 85 oxygen face mask or a reservoir mask	inclusion criteria: ages from 45-75 years old covid-19 patients with spo2 > 85 oxygen face mask or a reservoir mask