Meta Analysis
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 7, 2012; 18(45): 6657-6668
Published online Dec 7, 2012. doi: 10.3748/wjg.v18.i45.6657
Figure 1
Figure 1 Flow diagram depicting the process of identification and inclusion of selected studies.