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Meta-Analysis
©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Jun 21, 2013; 19(23): 3678-3684
Published online Jun 21, 2013. doi: 10.3748/wjg.v19.i23.3678
Figure 4
Figure 4 Funnel plot showing no publication bias in the studies included in this meta-analysis.


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