Brief Article
Copyright ©2010 Baishideng.
World J Gastroenterol. Mar 14, 2010; 16(10): 1258-1266
Published online Mar 14, 2010. doi: 10.3748/wjg.v16.i10.1258
Figure 1
Figure 1 A flowchart illustrating the selection of published studies included in this meta-analysis.