Created at	Source	Raw Value	Validated value
Dec. 3, 2020, 12:31 a.m.	usa	inclusion criteria: - covid-19 related pneumonia with moderate-severe respiratory failure (pao2/fio2<250) and/or markedly increased d-dimer level (>2000 ng/ml) - signed informed consent	inclusion criteria: - covid-19 related pneumonia with moderate-severe respiratory failure (pao2/fio2<250) and/or markedly increased d-dimer level (>2000 ng/ml) - signed informed consent