Meta-Analysis
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 21, 2013; 19(47): 9111-9118
Published online Dec 21, 2013. doi: 10.3748/wjg.v19.i47.9111
Figure 1
Figure 1 Flow chart of study selection and risk of bias summary. A: Flow chart of study selection; B: Risk of bias summary.