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. 2020 Oct 5;13:3409–3422. doi: 10.2147/IDR.S272605

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© 2020 Ramadan et al.

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ROC curve analysis using ferritin level for discriminating severe COVID-19 from non-severe cases. The AUC was 0.9233. The sensitivity, specificity, and cut-off point were (64.3%, 60% and > 484 ng/mL) for severe COVID-19.