Meta-Analysis
Copyright ©The Author(s) 2017.
World J Gastroenterol. Nov 28, 2017; 23(44): 7906-7916
Published online Nov 28, 2017. doi: 10.3748/wjg.v23.i44.7906
Figure 1
Figure 1 Flowchart of the literature search and study selection process according to the preferred reporting Items for systematic reviews and meta-analysis guidelines.