Created at	Source	Raw Value	Validated value
April 15, 2021, 12:31 a.m.	usa	inclusion criteria: patients admitted with confirmed covid-19 receiving mechanical ventilation for ards (pao2/fio2 ratio =300) within 48 hours	inclusion criteria: patients admitted with confirmed covid-19 receiving mechanical ventilation for ards (pao2/fio2 ratio =300) within 48 hours