Characterization of AmpC ß-lactamase mutations of extensively drug-resistant Pseudomonas aeruginosa isolates that develop resistance to ceftolozane/tazobactam during therapy Marta Fernández-Esgueva; Ana Isabel López-Calleja; Xavier Mulet; Pablo A. Fraile-Ribot; Gabriel Cabot; Rafael Huarte; Antonio Rezusta; Antonio Oliver;

Evaluation of three commercial methods of susceptibility testing for ceftolozane/tazobactam against carbapenem-resistant Pseudomonas aeruginosa Lorena López-Cerero; Sofia Ballesta; Cristina Elías López; Waldo Sánchez-Yebra; María Dolores Rojo-Martin; Alvaro Pascual;

What's new in mechanisms of antibiotic resistance in bacteria of clinical origin? Alejandra Asenjo; Jesús Oteo-Iglesias; Juan-Ignacio Alós;