Created at	Source	Raw Value	Validated value
Jan. 15, 2021, 12:31 a.m.	usa	inclusion criteria: - positive rt-pcr assay for sars cov-2 in a respiratory tract sample - hospitalized for covid-19 - radiographic diagnosis of pneumonia - respiratory insufficiency - receiving pharmacologic thromboprophylaxis	inclusion criteria: - positive rt-pcr assay for sars cov-2 in a respiratory tract sample - hospitalized for covid-19 - radiographic diagnosis of pneumonia - respiratory insufficiency - receiving pharmacologic thromboprophylaxis