Meta-Analysis
Copyright ©2014 Baishideng Publishing Group Co.
World J Gastroenterol. Jan 7, 2014; 20(1): 310-318
Published online Jan 7, 2014. doi: 10.3748/wjg.v20.i1.310
Figure 1
Figure 1 Flow diagram of the study selection process. RCTs: Randomized controlled trials.