Research Paper Volume 13, Issue 5 pp 7020—7034

The efficiency and safety of high-dose vitamin C in patients with COVID-19: a retrospective cohort study

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Figure 1. Overall survival with the two treatments in COVID-19 patients. The risk of mortality was significantly reduced with high-dose vitamin C than standard therapy (HR=0.14, 95% CI, 0.03-0.72). VitC: vitamin C.