title: Virulence factors or ancestral origin of Helicobacter pylori: which is a better predictor of gastric cancer risk?
authors: Seiji
authors: S
authors: Shiota
authors: Osamu
authors: O
authors: Matsunari
authors: Masahide
authors: M
authors: Watada
authors: Yoshio
authors: Y
authors: Yamaoka
references: Gastroenterology. 2002 Aug;123(2):414-24
references: 12145793
references: Gut. 2011 Sep;60(9):1189-95
references: 21357593