Meta-Analysis
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastrointest Endosc. Nov 16, 2014; 6(11): 549-554
Published online Nov 16, 2014. doi: 10.4253/wjge.v6.i11.549
Figure 1
Figure 1 Selection of studies for inclusion in the meta-analysis.