2004

1. Effect of the efflux pump inhibitor Phe-Arg-beta-naphthylamide on the MIC values of the quinolones, tetracycline, and chloramphenicol in Escherichia coli isolates of different origin.

   Journal of Antimicrobial Chemotherapy, Vol. 53, Núm. 3, pp. 544-545

2. Mechanisms of resistance in multiple-antibiotic-resistant Escherichia coli strains of human, animal, and food origins

   Antimicrobial Agents and Chemotherapy, Vol. 48, Núm. 10, pp. 3996-4001