Authors: Paulo Marcos da Matta Guedes; Julio A Urbina; Marta de Lana; Luis C C Afonso; Vanja M Veloso; Washington L Tafuri; George L L Machado-Coelho; Egler Chiari; Maria Terezinha Bahia Journal: Antimicrob Agents Chemother Date: 2004-11 Impact factor: 5.191