Influence of Intestinal Indigenous Microbiota on Intrafamilial Infection by Helicobacter pylori in Japan oleh Takako Osaki, Cynthia Zaman, Hideo Yonezawa, Yingsong Lin, Masumi Okuda, Masumi Okuda, Eriko Nozaki, Fuhito Hojo, Satoshi Kurata, Tomoko Hanawa, Shogo Kikuchi, Shigeru Kamiya