A study of 1,131 hospitalized patients (36 severe) reported a slightly increasing trend in APTT and PT for the severe group and a slightly decreasing trend in the mild group within the first 10 days of admission ( 4 ).
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Vascular risk factors for COVID-19 ARDS: endothelium, contact-kinin system.
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The sentences
There was no temporal change in D-dimer for the mild group, but an increasing trend was observed in the severe group, a finding similar to a study of 320 hospitalized patients ( 101 ).