Meta-Analysis
Copyright ©The Author(s) 2021.
World J Clin Cases. May 26, 2021; 9(15): 3607-3622
Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3607
Figure 1
Figure 1 Flowchart of the study selection. PEG: Polyethylene glycol.