Created at	Source	Raw Value	Validated value
Nov. 26, 2021, 10:30 p.m.	oms	1. COVID positive (by RT-PCR method) patients who are critically ill (room air SPO2 < 94%, and RR >25), and health care workers and close contacts. <br/ >2. Signed informed consent	1. COVID positive (by RT-PCR method) patients who are critically ill (room air SPO2 < 94%, and RR >25), and health care workers and close contacts. <br/ >2. Signed informed consent
Nov. 13, 2021, 5:33 p.m.	oms
Nov. 6, 2020, 11:45 p.m.	oms	1. COVID positive (by RT-PCR method) patients who are critically ill (room air SPO2 < 94%, and RR >25), and health care workers and close contacts. <br/ >2. Signed informed consent	1. COVID positive (by RT-PCR method) patients who are critically ill (room air SPO2 < 94%, and RR >25), and health care workers and close contacts. <br/ >2. Signed informed consent