Helicobacter pylori: bridging the credibility gap.

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Abstract
In summary, therefore, there are interesting associations between H pylori, duodenal ulcer, and non-ulcer dyspepsia. In type B gastritis there may be enough evidence to suggest a causal role. The relation between gastritis and upper gastrointestinal symptomatology, however, remains contentious. The relation between H pylori and acid secretion may be more intimate than was previously thought. 'Pylorites' must temper their enthusiasm and provide hard data; 'Schwartzians' must broaden their horizons.