Distribution of vacA genotypes in Helicobacter pylori strains isolated from Brazilian adult patients with gastritis, duodenal ulcer or gastric carcinoma.
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E. Mendes | G. Rocha | P. Magalhães | A. Nogueira | Dulciene M M Queiroz | C. A. de Oliveira | A. A. R. Ashour | G. Collares | V. R. De Gusmão