Molecular detection of genes encoding AcrAB , Qep A efflux pumps in Klebsiella pneumoniae strains isolated from hospitalized patients in selected hospitals in Tehran Journal title: مجله علمی- پژوهشی دانشگاه علوم پزشکی قم Authors: Mohsen Mohsen, Hossein Hossein, Ali Ali, Gita Gita, Saeed Saeed, Shokouh Shokouh Subject(s):