Meta-Analysis
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Jul 14, 2013; 19(26): 4242-4251
Published online Jul 14, 2013. doi: 10.3748/wjg.v19.i26.4242
Figure 1
Figure 1 Flowchart of literature search and studies selection. PUD: Peptic ulcer disease; GC: Gastric cancer; PCR: Polymerase chain reaction.