Meta-Analysis
Copyright ©The Author(s) 2021.
World J Gastroenterol. Oct 28, 2021; 27(40): 6985-6999
Published online Oct 28, 2021. doi: 10.3748/wjg.v27.i40.6985
Figure 1
Figure 1  Preferred reporting in systematic reviews and meta-analyses flowchart showing the selection process.