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Saliva contains several factors that protect thealimentary canal mucosa against acidity. We measured thesecretory carbonic anhydrase (CA VI) levels in thesaliva of patients with gastrointestinal disorders using a time-resolved immunofluorometric assay.The mean enzyme concentrations were found to be lower inpatients with verified esophagitis, gastric ulcer, orduodenal ulcer than in control patients...
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