Evaluation of DNA extraction protocols for Brucella abortus PCR detection in aborted fetuses or calves born from cows experimentally infected with strain 2308 - Matrone, Marianna; Keid, Lara Borges; Rocha, Vivianne Cambuí Mesquita; Vejarano, M. P; Ikuta, Cássia Yumi; Rosales Rodriguez, Cesar Alejandro; Ferreira, Fernando; Dias, Ricardo Augusto; Ferreira Neto, José Soares (Brazilian Journal of Microbiology, 2009)