Fig. 5From: Efficacy and safety of human umbilical cord-derived mesenchymal stem cells for COVID-19 pneumonia: a meta-analysis of randomized controlled trialsForest plot illustrating the differences in IFN-γ levels between the MSC and control groups 7 days after injection. A IFN-γ. B The sensitivity analysis for IFN-γ. CI, confidence interval; IV, Inverse-variance method; Chi2, Chi-Squared Test; df, degrees of freedom; I2, I-squared statistic; Tau2, Tau-squared statisticBack to article page