1. Arslan H, Azap OK, Ergönül O, Timurkaynak F. Urinary Tract Infection Study Group. Risk factors for ciprofloxacin resistance among Escherichia coli strains isolated from communityacquired urinary tract infections in Turkey. J Antimicrob Chemother 2005; 56(5): 914-8.

2. Stock I, Wiedemann B. Natural antibiotic susceptibility of Klebsiella pneumoniae, K. oxytoca, K. planticola, K. ornithinolytica and K. terrigena strains. J Med Microbiol 2001; 50(5): 396-406.

3. Tankhiwale SS, Jalgaonkar VS, Ahamad S, Hassani U. Extended spectrum beta-lactamase in urinary isolates. Indian J Med Res 2004; 120(7): 553-6.

4. Dobrindt U. Patho Genomics of Escherichia coli. Int J Med Microbiol 2005; 295(6-7): 357-71.

5. Johnson JR, Russo TA. Molecular epidemiology of extraintestinal pathogenic uropathogenic Escherichia coli. Int J Med Microbiol 2005; 295(6-7): 383–404.

6. Li Q, Lee JY, Castillo R, Hixon MS, Pujol C, Doppalapudi VR, et al. a novel antibacterial agent with broad-spectrum activity and enhanced potency against beta-lactamase-producing strains. Antimicrob Agents Chemother 2002; 46(5): 1262-8.

7. Lucas MJ, Cunningham FG. Urinary infection in pregnancy. Clin Obstet Gynecol 1993; 36(4): 855-68.

8. Struve C, Krogfelt KA. In vivo detection of Escherichia coli type 1 fimbrial expression and phase variation during experimental urinary tract infection. Microbiology 1999; 145 (Pt 10): 2683-90.

9. Wellens A, Garofalo C, Nguyen H, Van Gerven N, Slättegård R, Hernalsteens JP, et al. Intervening with urinary tract infections using anti-adhesives based on the crystal structure of the FimH oligomannose- 3 complex. PLoS One 2008; 3(4): e2040.

10. Stock I, Wiedemann B. Natural antibiotic susceptibility of Klebsiella pneumoniae, K. oxytoca, K. planticola, K. ornithinolytica and K. terrigena strains. J Med Microbiol 2001; 50(5): 396-406.

11. Kalantar D, Mansori SH, Razavi M. Emergence of Imipenem Resistance and Presence of Metallo--Lactamases Enzymes in Multi Drug Resistant Gram Negative Bacilli Isolated from Clinical Samples in Kerman, 2007-2008. J Kerman Univ Med Sci 2010; 17(3): 208-14.

12. Shahraki Sh. Collegue Patern of antibiotic resistance and prevalence of ESBLS in klebsiella pneumoniae from UTI. Sci Institue 2013; 8(4): 32.

13. Langarizadeh N, Ahangarzadeh M. Prevalence of multi-drug resistant (MDR) Klebsiella pneumoniae among children and adults with urinary tract infection referred to Tabriz teaching hospitals. Quarterly J Biological Sci 2011.4(1):9-17.

14. Menegueti MG, Pereira MF, Bellissimo-Rodrigues F, Garcia TM, Saber LT, Nardim ME, et al. Study of the risk factors related to acquisition of urinary tract infections in patients submitted to renal transplant. Rev Soc Bras Med Trop 2015; 48(3): 285-90.

15. Bush K, Jacoby GA. Updated Functinal Classifiatin of b-lactamases. Antimicrob Agents Chemother 2010; 54(3): 969-76.

16. Green VL, Verma A, Owens RJ, Phillips SE, Carr SB. Structure of New Delhi Metallo-β-Lactamase 1 (NDM-1). Acta Crystallogr Sect F Struct Biol Cryst Commun 2011; 67(Pt10): 1160-4.

17. Ravichitra P. Hema Prakash Isolation and antibiotic sensitivity of Klebsiella pneumonia from pus, sputum and urine samples Int. J Curr Microbiol 2014; 3(3): 115-9.

18. Hashemizadeh F, Zamanzadeh B. Identification of Klebsiella pneumoniae producing broadspectrum beta-lactamases in clinical samples in Iran. Yafte 2013; 15(1): 105-14.

19. Langarizadeh N, Ahangarzadeh RM, Aghazadeh M, Hasani A. Prevalence of multi-drug resistant (MDR) Klebsiella pneumoniae among children and adults with urinary tract infection referred to tabriz teaching hospitals. Quarterly J Biological Sci 2011; 4(1): 9-17.

20. Metwally L, Gomaa N, Attallah M, Kamel N. High prevalence of Klebsiella pneumoniae carbapenemase-mediated resistance in K. pneumoniae isolates from Egypt/Prévalence élevée de la résistance de Klebsiella pneumoniae médiée par les carbapénèmases dans des isolats de K. pneumoniae en Égypte. Eastern Mediterranean Health J 2013; 19(11): 947.

21. Christine Lascols,a Gisele Peirano,b,c Meredith Hackel, Surveillance and Molecular Epidemiology of Klebsiella pneumonia Isolates That Produce carbapenemases: First Report of OXA-48-Like Enzymes in North American. Society Microbiol 2013; 57(5): 1.

22. Hoyle BD, Jass J, Costerton JW. The biofilm glycocalyx as a resistance factor. J Antimicrob Chemother 2007; 26(1): 1-5.

23. Kalantar D, Mansori SH, Razavi M. Emergence of Imipenem Resistance and Presence of Metallo--Lactamases Enzymes in Multi Drug Resistant Gram Negative Bacilli Isolated from Clinical Samples in Kerman, 2007-2008. J Kerman Univ Med Sci 2010; 17(3): 208-14.

24. Enwuru NV, Enwuru CA, Ogbonnia SO, Adepoju-Bello AA. Metallo-β-lactamase production by Escherichia coli and Klebsiella species isolated from hospital and community subjects in Lagos, Nigeria. Nat Sci 2011; 9(11): 1-5.