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LETTERS TO THE EDITOR
Immunoblot assay for detection of salivary antibodies directed against Helicobacter pylori
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Editor,—The study by Reilly et al(Gut 1997;40:454–8) showing that analysing saliva for the presence of Helicobacter pylori specific antibodies might be useful for diagnosis is interesting and prompted us to investigate the H pylori specific antibody response of the IgA and IgG class in serum and saliva using the immunoblot assay in 90 patients with chronic gastritis who underwent gastroscopy. H pylori carrier status was defined …