Fig. 3From: Association of interleukin-6, ferritin, and lactate dehydrogenase with venous thromboembolism in COVID-19: a systematic review and meta-analysisFunnel plots of the correlation between IL-6, ferritin, and LDH and the development of venous thromboembolism in COVID-19 patients. A Funnel plot of IL-6. B Funnel plot of ferritin. C Funnel plot of LDHBack to article page