The first report of the qnrB19, qnrS1 and aac(6')-Ib-cr genes in urinary isolates of ciprofloxacin-resistant Escherichia coli in Brazil - Paiva, Magna Cristina de; Nascimento, Andréa Maria Amaral; Camargo, Ilana Lopes Baratella da Cunha; Bittencourt, Cláudia Iracema Lima; Drummond, Regina Maria Nardi (Memórias do Instituto Oswaldo Cruz, 2012)