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De Gusmão, Valquiria Ribeiro, Edilberto Nogueira Mendes, Dulciene Maria De Magalhães Queiroz, Gifone Aguiar Rocha, Andreia Maria Camargos Rocha, Abdussalam Ali Ramadan Ashour, و Anfrisina Sales Teles Carvalho. VacA Genotypes in Helicobacter Pylori Strains Isolated From Children With and Without Duodenal Ulcer in Brazil. American Society for Microbiology, 2000.

De Gusmão, Valquiria Ribeiro, et al. VacA Genotypes in Helicobacter Pylori Strains Isolated From Children With and Without Duodenal Ulcer in Brazil. American Society for Microbiology, 2000.