Temporal profile of antimicrobial resistance exhibited by strains of Staphylococcus spp. isolated from cases of bovine mastitis for 20 years (1992-2011) oleh Ananda Paula Kowalski, Grazieli Maboni, Julia Pires Espindola, Ariane Foletto, Guerino Bandeira Junior, Luciana Pötter, Sônia de Avila Botton, Agueda Castagna de Vargas