Comparison of Two Methods of Direct PCR and PCR with DNA extracted by Kit for Detection of OPrL, ExoA, and algD genes in clinical isolates of Pseudomonas aeruginosa Journal title: مجله علمی- پژوهشی دانشگاه علوم پزشکی قم Authors: Hamed Hamed, Javad Javad, Shahram Shahram, Behroz Behroz Subject(s):