Figure 1: The distribution of cases within treatment groups (CES: Cefoperazone-sulbactam, AG: Aminoglycoside, CAR: Carbapenem, TIG: Tigecycline, SULB: Sulbactam, QUIN: Quinolone, TPZ: Piperacilln/ tazobactam, RIF: Rifampin, FEP: Cefepime