Meta-Analysis
Copyright ©The Author(s) 2017.
World J Meta-Anal. Oct 26, 2017; 5(5): 124-131
Published online Oct 26, 2017. doi: 10.13105/wjma.v5.i5.124
Figure 1
Figure 1 PRISMA selection. Study selection process according to the PRISMA statement meaningful analysis, funnel plots were not used to investigate publication bias.