Ribotyping of Salmonella Enteritidis strains reveals the spread of a single genotype in the Brazilian city of Ribeirão Preto - Martins, Carlos Henrique Gomes; Santos, Vanda Roseli dos; Castro, Fabíola Attié de; Fernandes, Sueli Aparecida; Martinez, Roberto (Jornal Brasileiro de Patologia e Medicina Laboratorial, 2006)