High Prevalence of Plasmid-Mediated Quinolone Resistance Genes qnr and aac(6`)-Ib-cr in Clinical Isolates of Enterobacteriaceae from Nine Teaching Hospitals in China

Hong Yang, Hongbin Chen, Minjun Chen and Hui Wang

Antimicrobial Agents and Chemotherapy 52 ( 12 ): 4268 - 4273 , 2008