... The Impact of a Nationwide Antibiotic Restriction Program on Antibiotic Usage and Resistance against Nosocomial Pathogens in Turkey Adalet Altunsoy1, Cenk Aypak2, Alpay Azap1, Önder ... pipera-cillin-tazobactam, carbapenems (imipenem, mero-penem), aminoglycosides (amikacin, gentamicin) against aforementioned pathogens were analysed. Bacterial idenfications were performed by conven-tional ... of piperacil-lin-tazobactam after the NARP, the resistance rates of E.coli and Klebsiella spp. against piperacil-lin-tazobactam did not increase significantly (rho:0.626, p=0.096 and rho:0.357,...