Created at	Source	Raw Value	Validated value
June 25, 2024, noon	usa	inclusion criteria: * ratio between arterial partial pressure to inspired fraction of oxygen (pao2/fio2) \< 200 mmhg * age equal or greater of 18 years/old * detection of coronavirus 2019 at the nasal swab; * need for endotracheal intubation and invasive mechanical ventilation	inclusion criteria: * ratio between arterial partial pressure to inspired fraction of oxygen (pao2/fio2) \< 200 mmhg * age equal or greater of 18 years/old * detection of coronavirus 2019 at the nasal swab; * need for endotracheal intubation and invasive mechanical ventilation
April 21, 2022, 1 a.m.	usa	inclusion criteria: ratio between arterial partial pressure to inspired fraction of oxygen (pao2/fio2) < 200 mmhg age equal or greater of 18 years/old detection of coronavirus 2019 at the nasal swab; need for endotracheal intubation and invasive mechanical ventilation	inclusion criteria: ratio between arterial partial pressure to inspired fraction of oxygen (pao2/fio2) < 200 mmhg age equal or greater of 18 years/old detection of coronavirus 2019 at the nasal swab; need for endotracheal intubation and invasive mechanical ventilation