Meta-Analysis
Copyright ©The Author(s) 2021.
World J Meta-Anal. Dec 28, 2021; 9(6): 585-597
Published online Dec 28, 2021. doi: 10.13105/wjma.v9.i6.585
Figure 4
Figure 4 Funnel plots of publication bias. A: Funnel plot of variables used to acquire overall standard mean difference; B: Funnel diagram of risk ratio.