COVID-19 Research Paper Volume 13, Issue 18 pp 21866—21902
Efficacy and safety of current medications for treating severe and non-severe COVID-19 patients: an updated network meta-analysis of randomized placebo-controlled trials
Figure 2. The quality for included randomized placebo-controlled trials. (A) Risk of bias summary (Note: The yellow circle with question mark represents “unclear risk of bias”, the red one with minus sign represents “high risk of bias” and the green one with plus sign represents “low risk of bias”). (B) Risk of bias graph.