Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Apr 28, 2015; 21(16): 4954-4960
Published online Apr 28, 2015. doi: 10.3748/wjg.v21.i16.4954
Figure 1
Figure 1 A schematic diagram of the study. PU: Peptic ulcer; GU: Gastric ulcer; DU: Duodenal ulcer; GC: Gastric cancer; Hp: Helicobacter pylori; HpGU-GC: GCs with previous GU and H. pylori infection; HpDU-GC: GCs with previous DU and H. pylori infection; HpGUDU-GC: GCs with previous both GU and DU and H. pylori infection.