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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.
1 passage
H. pylori and Barrett's Esophagus: Implications for Populations and Practice. In this edition of the American Journal of Gastroenterology, Wang and colleagues report the results of an analysis of six different case-control studies examining the relationship between Helicobacter pylori (H. pylori) infection and Barrett's esophagus. They present a cogent argument that there is an inverse association between these two that is mediated via GERD. This is broadly consistent with previous reports. While further establishing this inverse association, the findings should not materially influence our routine clinical practice regarding GERD or H. pylori infection.