Meta-Analysis
Copyright ©The Author(s) 2019.
World J Clin Cases. Aug 26, 2019; 7(16): 2287-2301
Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2287
Figure 5
Figure 5 Risk of bias assessment. Green circle: Low risk of bias; red circle: high risk of bias; yellow circle: Unclear risk of bias.