Genetic differences between Escherichia coli O26 strains isolated in Brazil and in other countries - Peixoto, Jean Charles da Cunha; Bando, Silvia Yumi; Ordonez, Joana; Botelho, Beatriz Amoroso; Trabulsi, Luiz Rachid; Moreira-Filho, Carlos Alberto (FEMS Microbiology Letters, 2001)