%0 Journal Article %A PIERRE MICHETTI %T Vaccine against Helicobacter pylori: fact or fiction? %D 1997 %R 10.1136/gut.41.6.728 %J Gut %P 728-730 %V 41 %N 6 %U https://gut.bmj.com/content/gutjnl/41/6/728.full.pdf