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Ammonia vapour in the oral cavity as a diagnostic marker for infection with Helicobacter pylori: Preliminary 'proof of principle' pharmacological investigations (2001)
Journal Article

Most current non-invasive tests for Helicobacter pylori depend on the conversion of labelled (13C or 14C) urea to labelled carbon dioxide (13CO2 or 14CO2) and ammonium (NH4+) by the enzyme urease, with the labelled CO2 detected in exhaled air. Despit... Read More about Ammonia vapour in the oral cavity as a diagnostic marker for infection with Helicobacter pylori: Preliminary 'proof of principle' pharmacological investigations.