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The relationship and predictive effect of CRP, NLR and D-dimer on severity and death for patients with COVID-19. (A) Receiver operating characteristics curve of CRP, NLR and D-dimer for the diagnosis of severity and death of patients with COVID-19. (B) The time-dependent risk of COVID-19 patients with lower or higher levels of CRP, NLR, D-dimer using Kaplan-Meier method. CRP, C reactive protein; NLR, neutrophil-to-lymphocyte ratio; ROC, receiver operating characteristics.
