Meta-Analysis
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 7, 2013; 19(45): 8408-8419
Published online Dec 7, 2013. doi: 10.3748/wjg.v19.i45.8408
Figure 1
Figure 1 Screening process of studies. PPI: Proton pump inhibitor.