Mutant prevention concentrations of levofloxacin alone and in combination with azithromycin, ceftazidime, colistin (Polymyxin E), meropenem, piperacillin-tazobactam, and tobramycin against Pseudomonas aeruginosa - Zhanel, G G; Mayer, M; Laing, N; Adam, H J (Antimicrob Agents Chemother, 2006)