85. Screening Household Members of Acute Brucellosis Cases in Endemic Areas and Risk Factors for Brucellosis. Deniz S, Baykam N, Celikbas A, Yilmaz SM, Guzel TC, Dokuzoguz B, Ergonul O. Vector Borne Zoonotic Dis. 2015 Aug;15(8):468-72. doi: 10.1089/vbz.2014.1723. PMID: 26273807
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84. Seroprevalence of hepatitis B and C virus infections and risk factors in Turkey: a fieldwork TURHEP study.  Tozun N, Ozdogan O, Cakaloglu Y, Idilman R, Karasu Z, Akarca U, Kaymakoglu S, Ergonul O. Clin Microbiol Infect. 2015 Jul 8. pii: S1198-743X(15)00690-4. doi: 10.1016/j.cmi.2015.06.028. [Epub ahead of print] PMID: 26163105
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83. Predictors for limb loss among patient with diabetic foot infections: an observational retrospective multicentric study in Turkey. Saltoglu N, Yemisen M, Ergonul O, Kadanali A, Karagoz G, Batirel A, Ak O, Eraksoy H, Cagatay A, Vatan A, Sengoz G, Pehlivanoglu F, Aslan T, Akkoyunlu Y, Engin D, Ceran N, Erturk B, Mulazimoglu L, Oncul O, Ay H, Sargin F, Ozgunes N, Simsek F, Yildirmak T, Tuna N, Karabay O, Yasar K, Uzun N, Kucukardali Y, Sonmezoglu M, Yilmaz F, Tozalgan U, Ozer S, Ozyazar M; KLIMIK Turkish Society, Diabetic Foot Study Group. Clin Microbiol Infect. 2015 Jul;21(7):659-64. doi: 10.1016/j.cmi.2015.03.018. Epub 2015 Apr 8. PMID: 25861844
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82. Evidence supports ribavirin use in Crimean-Congo hemorrhagic fever.Ergonul O. Int J Infect Dis. 2014 Dec;29:296. doi: 10.1016/j.ijid.2014.08.016. Epub 2014 Oct 22. No abstract available. PMID: 25461237
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81. Crimean-Congo hemorrhagic fever: aid of abdominal ultrasonography in prediction of severity. Ziraman I, Celikbas A, Ergonul O, Degirmenci T, Uyanik SA, Koparal S, Dokuzoguz B. Vector Borne Zoonotic Dis. 2014 Nov;14(11):817-20. doi: 10.1089/vbz.2014.1662. PMID: 25409273
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80. Emerging Escherichia coli O25b/ST131 clone predicts treatment failure in urinary tract infections. Can F, Azap OK, Seref C, Ispir P, Arslan H, Ergonul O. Clin Infect Dis. 2015 Feb 15;60(4):523-7. doi: 10.1093/cid/ciu864. Epub 2014 Nov 6. PMID: 25378460
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79.Translation and cross-cultural adaptation of the international knee documentation committee subjective knee form into Turkish. Çelik D, Coşkunsu D, KiliÇoğlu Ö, Ergönül Ö, Irrgang JJ. J Orthop Sports Phys Ther. 2014 Nov;44(11):899-909. doi: 10.2519/jospt.2014.4865. Epub 2014 Oct 16. PMID: 25323139
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78. On the uniqueness of epidemic models fitting a normalized curve of removed individuals. Bilge AH, Samanlioglu F, Ergonul O. J Math Biol. 2015 Oct;71(4):767-94. doi: 10.1007/s00285-014-0838-z. Epub 2014 Oct 14. PMID: 25312413
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77. Reply: To PMID 25239255. Tukenmez Tigen E, Tandogdu Z, Ergonul O, Altinkanat G, Gunaydin B, Ozgen M, Sariguzel N, Erturk Sengel B, Odabasi Z, Cek M, Tokuc R, Turkeri L, Mulazimoglu L, Korten V. Urology. 2014 Nov;84(5):1014-5. doi: 10.1016/j.urology.2014.04.063. Epub 2014 Sep 18. No abstract available. PMID: 25239256
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76. Outcomes of fecal carriage of extended-spectrum β-lactamase after transrectal ultrasound-guided biopsy of the prostate. Tukenmez Tigen E, Tandogdu Z, Ergonul O, Altinkanat G, Gunaydin B, Ozgen M, Sariguzel N, Erturk Sengel B, Odabasi Z, Cek M, Tokuc R, Turkeri L, Mulazimoglu L, Korten V. Urology. 2014 Nov;84(5):1008-15. doi: 10.1016/j.urology.2014.04.060. Epub 2014 Sep 18. PMID: 25239255
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75. Risk factors for occupational brucellosis among veterinary personnel in Turkey. Kutlu M, Ergonul O, Sayin-Kutlu S, Guven T, Ustun C, Alp-Cavus S, Ozturk SB, Acicbe O, Akalin S, Tekin R, Tekin-Koruk S, Demiroglu YZ, Keskiner R, Gönen I, Sapmaz-Karabag S, Bosnak V, Kazak E. Prev Vet Med. 2014 Nov 1;117(1):52-8. doi: 10.1016/j.prevetmed.2014.07.010. Epub 2014 Jul 27. PMID: 25132061
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74. The evolving role of PET/CT in fever of unknown origin. Tokmak H, Ergonul O. Int J Infect Dis. 2014 Oct;27:1-3. doi: 10.1016/j.ijid.2014.06.006. Epub 2014 Jul 29. No abstract available. PMID: 25080356
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73. Crimean-Congo hemorrhagic fever infections reported by ProMED. Ince Y, Yasa C, Metin M, Sonmez M, Meram E, Benkli B, Ergonul O. Int J Infect Dis. 2014 Sep;26:44-6. doi: 10.1016/j.ijid.2014.04.005. Epub 2014 Jun 16. PMID: 24947424
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72. Predictors of fatality in pandemic influenza A (H1N1) virus infection among adults. Ergönül Ö, Alan S, Ak Ö, Sargın F, Kantürk A, Gündüz A, Engin D, Öncül O, Balkan II, Ceylan B, Benzonana N, Yazıcı S, Şimşek F, Uzun N, Inan A, Gulhan E, Ciblak M, Midilli K, Ozyurt M, Badur S, Gencer S, Nazlıcan O, Özer S, Özgüneş N, Yıldırmak T, Aslan T, Göktaş P, Saltoğlu N, Fincancı M, Dokucu AI, Eraksoy H; Turkish Society of Clinical Microbiology and Infectious Diseases (KLIMIK); Pandemic Influenza Study Group. BMC Infect Dis. 2014 Jun 10;14:317. doi: 10.1186/1471-2334-14-317. PMID: 24916566
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71. Vertebral osteomyelitis: clinical features and diagnosis. Eren Gök S, Kaptanoğlu E, Celikbaş A, Ergönül O, Baykam N, Eroğlu M, Dokuzoğuz B. Clin Microbiol Infect. 2014 Oct;20(10):1055-60. doi: 10.1111/1469-0691.12653. Epub 2014 Jun 14. PMID: 24766063
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70. Early use of ribavirin is beneficial in Crimean-Congo hemorrhagic fever. Ozbey SB, Kader Ç, Erbay A, Ergönül Ö. Vector Borne Zoonotic Dis. 2014 Apr;14(4):300-2. doi: 10.1089/vbz.2013.1421. Epub 2014 Apr 1. PMID: 24689859
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71. Potential sexual transmission of Crimean-Congo hemorrhagic fever infection.Ergonul O, Battal I. Jpn J Infect Dis. 2014;67(2):137-8. No abstract available. PMID: 24647261
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72. Crimean-Congo hemorrhagic fever among health care workers, Turkey. Celikbas AK, Dokuzoğuz B, Baykam N, Gok SE, Eroğlu MN, Midilli K, Zeller H, Ergonul O. Emerg Infect Dis. 2014 Mar;20(3):477-9. doi: 10.3201/eid2003.131353. PMID: 24564994
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71.Diagnostic contribution of (18)F-FDG-PET/CT in fever of unknown origin. Tokmak H, Ergonul O, Demirkol O, Cetiner M, Ferhanoglu B. Int J Infect Dis. 2014 Feb;19:53-8. doi: 10.1016/j.ijid.2013.10.009. Epub 2013 Dec 1. PMID:24295559
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70.Detailed analysis of diffuse large B cell lymphoma patients: a single-center, retrospective study. Ozbalak M, Ar MC, Tuzuner N, Salihoglu A, Eskazan AE, Ongoren Aydin S, Baslar Z, Soysal T, Aydin Y, Barak Dolgun A, Ergonul O, Ferhanoglu B. ISRN Hematol. 2013 Jul 30;2013:908191. doi: 10.1155/2013/908191. eCollection 2013. PMID:23984080
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69.Severity scoring index for Crimean-Congo hemorrhagic fever and the impact of ribavirin and corticosteroids on fatality. Dokuzoguz B, Celikbas AK, Gök ŞE, Baykam N, Eroglu MN, Ergönül Ö. Clin Infect Dis. 2013 Nov;57(9):1270-4. doi: 10.1093/cid/cit527. Epub 2013 Aug 14. PMID: 23946218
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68.West nile virus infection in the Mesopotamia region, Syria border of Turkey. Karakoç ZÇ, Tüzüner BM, Ergonul O, Pierro A, Di Fonzo E, Koruk İ, Sambri V. Vector Borne Zoonotic Dis. 2013 Oct;13(10):739-43. doi: 10.1089/vbz.2012.1140. Epub 2013 Jun 29. PMID: 23808974
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67.Transmission of methicillin-sensitive Staphylococcus aureus to a preterm infant through breast milk. Kayıran PG, Can F, Kayıran SM, Ergonul O, Gürakan B. J Matern Fetal Neonatal Med. 2014 Mar;27(5):527-9. doi: 10.3109/14767058.2013.819332. Epub 2013 Jul 24. PMID: 23805943
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66.Reply to Kesav et al. Ergonul O, Guven T, Ugurlu K, Celikbas AK, Gök SE, Comoglu S, Baykam N, Dokuzoguz B. Clin Infect Dis. 2013 Oct;57(7):1057-8. doi: 10.1093/cid/cit399. Epub 2013 Jun 26. No abstract available. PMID: 23804194
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65.Preferences of different tick species for human hosts in Turkey. Kar S, Dervis E, Akın A, Ergonul O, Gargili A. Exp Appl Acarol. 2013 Nov;61(3):349-55. doi: 10.1007/s10493-013-9698-2. Epub 2013 Apr 26. PMID: 23620419
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64. Nosocomial outbreak of disseminated orf infection in a burn unit, Gaziantep, Turkey, October to December 2012. Midilli K, Erkiliç A, Kuşkucu M, Analay H, Erkiliç S, Benzonana N, Yildirim MS, Mülayim K, Acar H, Ergonul O. Euro Surveill. 2013 Mar 14;18(11):20425. Erratum in: Euro Surveill. 2013;18(14):20442. PMID: 23517869
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63.Neurobrucellosis: clinical and diagnostic features. Guven T, Ugurlu K, Ergonul O, Celikbas AK, Gok SE, Comoglu S, Baykam N, Dokuzoguz B. Clin Infect Dis. 2013 May;56(10):1407-12. doi: 10.1093/cid/cit072. Epub 2013 Feb 27. PMID: 23446629
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62.[An imported dengue Fever case in Turkey and review of the literature]. Uyar Y, Aktaş E, Yağcı Çağlayık D, Ergönül O, Yüce A. Mikrobiyol Bul. 2013 Jan;47(1):173-80. Turkish. PMID: 23390916
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61.Health-related quality of life and the prevalence of post-traumatic stress disorder among Crimean-Congo hemorrhagic fever survivors. Gul S, Gul EU, Yesilyurt M, Ozturk B, Kuscu F, Ergonul O. Jpn J Infect Dis. 2012;65(5):392-5. PMID: 22996211
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60.Crimean-Congo hemorrhagic fever virus: new outbreaks, new discoveries. Ergonul O. Curr Opin Virol. 2012 Apr;2(2):215-20. doi: 10.1016/j.coviro.2012.03.001. Review. PMID: 22482717
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59.Laboratory-acquired brucellosis in Turkey. Sayin-Kutlu S, Kutlu M, Ergonul O, Akalin S, Guven T, Demiroglu YZ, Acicbe O, Akova M; Occupational Infectious Diseases Study Group. J Hosp Infect. 2012 Apr;80(4):326-30. doi: 10.1016/j.jhin.2011.12.020. Epub 2012 Feb 25. PMID: 22365915
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58.Comparison of anthropometric indices in predicting metabolic syndrome components in children. Agirbasli M, Agaoglu NB, Ergonul O, Yagmur I, Aydogar H, Oneri T, Ozturk O. Metab Syndr Relat Disord. 2011 Dec;9(6):453-9. doi: 10.1089/met.2011.0018. Epub 2011 Aug 10. PMID: 21830913
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57.Evaluation of the therapeutic use of antibiotics in Aegean Region hospitals of Turkey: a multicentric study. Ozgenç O, Genç VE, Ari AA, El Sibel, Saçar S, Ozunlu H, Akgul A, Demirturk N, Cetin CB, Sungur M, Coşkuner SA, Avci M, Ergonul O; Antibiotic Resistance Study Group of Turkish Association of Clinical Microbiology and Infectious Diseases. Indian J Med Microbiol. 2011 Apr-Jun;29(2):124-9. doi: 10.4103/0255-0857.81788. PMID: 21654105
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56.The impact of a nationwide antibiotic restriction program on antibiotic usage and resistance against nosocomial pathogens in Turkey. Altunsoy A, Aypak C, Azap A, Ergönül Ö, Balık I. Int J Med Sci. 2011;8(4):339-44. Epub 2011 May 24. PMID: 21647326
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55.[A water-borne tularemia outbreak caused by Francisella tularensis subspecies holarctica in Central Anatolia region]. Ulu Kılıç A, Kılıç S, Sencan I, Ciçek Şentürk G, Gürbüz Y, Tütüncü EE, Celebi B, Kıcıman Ö, Ergönül Ö. Mikrobiyol Bul. 2011 Apr;45(2):234-47. Turkish. PMID: 21644066
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54.Crimean-Congo hemorrhagic fever in European part of Turkey: genetic analysis of the virus strains from ticks and a seroepidemiological study in humans. Gargili A, Midilli K, Ergonul O, Ergin S, Alp HG, Vatansever Z, Iyisan S, Cerit C, Yilmaz G, Altas K, Estrada-Peña A. Vector Borne Zoonotic Dis. 2011 Jun;11(6):747-52. doi: 10.1089/vbz.2010.0030. Epub 2010 Oct 28. PMID: 21028961
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53.Interventions against West Nile virus, Rift Valley fever virus, and Crimean-Congo hemorrhagic fever virus: where are we? Kortekaas J, Ergönül O, Moormann RJ. Vector Borne Zoonotic Dis. 2010 Oct;10(7):709-18. doi: 10.1089/vbz.2010.0040. PMID: 20854026
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52.Crimean-Congo hemorrhagic fever in children. Tezer H, Sucakli IA, Sayli TR, Celikel E, Yakut I, Kara A, Tunc B, Ergonul O. J Clin Virol. 2010 Jul;48(3):184-6. doi: 10.1016/j.jcv.2010.04.001. Epub 2010 May 4. PMID: 20444644
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51.Crimean-Congo hemorrhagic fever in Europe: current situation calls for preparedness. Maltezou HC, Andonova L, Andraghetti R, Bouloy M, Ergonul O, Jongejan F, Kalvatchev N, Nichol S, Niedrig M, Platonov A, Thomson G, Leitmeyer K, Zeller H. Euro Surveill. 2010 Mar 11;15(10):19504. PMID: 20403306
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50.The trend towards habitat fragmentation is the key factor driving the spread of Crimean-Congo haemorrhagic fever. Estrada-Peña A, Vatansever Z, Gargili A, Ergönul O. Epidemiol Infect. 2010 Aug;138(8):1194-203. doi: 10.1017/S0950268809991026. Epub 2009 Nov 2. PMID: 19878611
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49.Ribavirin in crimean-congo hemorrhagic fever: primum non nocere. Ergönül O, Celikbaş A, Dokuzoğuz B, Eren S, Baykam N, Esener H. Clin Infect Dis. 2009 Nov 15;49(10):1621-2. doi: 10.1086/644778. No abstract available. PMID: 19857172 
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48.Characteristics of cutaneous anthrax in Turkey. Baykam N, Ergonul O, Ulu A, Eren S, Celikbas A, Eroglu M, Dokuzoguz B. J Infect Dev Ctries. 2009 Sep 15;3(8):599-603. PMID: 19801802
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47.Pregnancy and Crimean-Congo haemorrhagic fever. Ergonul O, Celikbas A, Yildirim U, Zenciroglu A, Erdogan D, Ziraman I, Saracoglu F, Demirel N, Cakmak O, Dokuzoguz B. Clin Microbiol Infect. 2010 Jun;16(6):647-50. doi: 10.1111/j.1469-0691.2009.02905.x. Epub 2009 Sep 23. PMID: 19778302
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46.DEBATE (see Elaldi N et al, Efficacy of oral ribavirin treatment in Crimean-Congo haemorrhagic fever: a quasi-experimental study from Turkey. Journal of Infection 2009; 58: 238-244): Biases and misinterpretation in the assessment of the efficacy of oral ribavirin in the treatment of Crimean-Congo hemorrhagic fever. Ergonul O. J Infect. 2009 Oct;59(4):284-6; author reply 286-9. doi: 10.1016/j.jinf.2009.08.006. Epub 2009 Aug 21. No abstract available. PMID: 19699762
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45.Lymphocyte subgroups in children with CCHF: a marker for prognosis. Tezer H, Sayli TR, Metin A, Köker Y, Devrim I, Ergönül O. J Infect. 2009 Oct;59(4):291-3. doi: 10.1016/j.jinf.2009.07.011. Epub 2009 Jul 24. No abstract available. PMID: 19665801
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44.The first clinical case due to AP92 like strain of Crimean-Congo Hemorrhagic Fever virus and a field survey. Midilli K, Gargili A, Ergonul O, Elevli M, Ergin S, Turan N, Sengöz G, Ozturk R, Bakar M. BMC Infect Dis. 2009 Jun 10;9:90. doi: 10.1186/1471-2334-9-90. PMID: 19515251
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43.International network for capacity building for the control of emerging viral vector-borne zoonotic diseases: ARBO-ZOONET. Ahmed J, Bouloy M, Ergonul O, Fooks A, Paweska J, Chevalier V, Drosten C, Moormann R, Tordo N, Vatansever Z, Calistri P, Estrada-Pena A, Mirazimi A, Unger H, Yin H, Seitzer U. Euro Surveill. 2009 Mar 26;14(12). pii: 19160. PMID: 19341603
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42.The role of ribavirin in the therapy of Crimean-Congo hemorrhagic fever: early use is promising. Tasdelen Fisgin N, Ergonul O, Doganci L, Tulek N. Eur J Clin Microbiol Infect Dis. 2009 Aug;28(8):929-33. doi: 10.1007/s10096-009-0728-2. Epub 2009 Mar 20. PMID: 19301047
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41.An outbreak of oropharyngeal tularaemia linked to natural spring water. Willke A, Meric M, Grunow R, Sayan M, Finke EJ, Splettstösser W, Seibold E, Erdogan S, Ergonul O, Yumuk Z, Gedikoglu S. J Med Microbiol. 2009 Jan;58(Pt 1):112-6. doi: 10.1099/jmm.0.002279-0. PMID: 19074661
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40.Methicillin-resistant Staphylococcus aureus on hospital admission in Turkey. Baykam N, Esener H, Ergonul O, Kosker PZ, Cirkin T, Celikbas A, Eren S, Dokuzoguz B. Am J Infect Control. 2009 Apr;37(3):247-9. doi: 10.1016/j.ajic.2008.05.014. Epub 2008 Oct 22. PMID: 18945517
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39.Active case finding of tuberculosis in Europe: a Tuberculosis Network European Trials Group (TBNET) survey. Bothamley GH, Ditiu L, Migliori GB, Lange C; TBNET contributors. Eur Respir J. 2008 Oct;32(4):1023-30. doi: 10.1183/09031936.00011708. Epub 2008 Jun 11. PMID: 18550615
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38.Treatment of Crimean-Congo hemorrhagic fever. Ergonul O. Antiviral Res. 2008 Apr;78(1):125-31. Epub 2007 Dec 3. Review. PMID: 18096251
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37.Modeling the spatial distribution of crimean-congo hemorrhagic fever outbreaks in Turkey. Estrada-Peña A, Zatansever Z, Gargili A, Aktas M, Uzun R, Ergonul O, Jongejan F. Vector Borne Zoonotic Dis. 2007 Winter;7(4):667-78. PMID: 18047397
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36.Epidemiologic and clinical characteristics of HIV/AIDS patients in Turkey, where the prevalence is the lowest in the region. Celikbas A, Ergonul O, Baykam N, Eren S, Esener H, Eroğlu M, Dokuzoguz B. J Int Assoc Physicians AIDS Care (Chic). 2008 Jan-Feb;7(1):42-5. Epub 2007 Nov 7. PMID: 17989428
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35.Imported Crimean-Congo hemorrhagic fever cases in Istanbul. Midilli K, Gargili A, Ergonul O, Sengöz G, Ozturk R, Bakar M, Jongejan F. BMC Infect Dis. 2007 Jun 6;7:54. PMID: 17553137
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34.Measles, rubella, mumps, and varicella seroprevalence among health care workers in Turkey: is prevaccination screening cost-effective? Celikbas A, Ergonul O, Aksaray S, Tuygun N, Esener H, Tanir G, Eren S, Baykam N, Guvener E, Dokuzoguz B. Am J Infect Control. 2006 Nov;34(9):583-7. PMID: 17097453
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33.[Malaria in Turkey and 14 years of clinical experience]. Celikbaş AK, Ergönül O, Baykam N, Eren S, Güven T, Dokuzoğuz B. Mikrobiyol Bul. 2006 Jul;40(3):237-43. Turkish. PMID: 17001853
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32.Zoonotic infections among veterinarians in Turkey: Crimean-Congo hemorrhagic fever and beyond. Ergönül O, Zeller H, Kiliç S, Kutlu S, Kutlu M, Cavusoglu S, Esen B, Dokuzoğuz B. Int J Infect Dis. 2006 Nov;10(6):465-9. Epub 2006 Sep 15. PMID: 16978897
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31.Recurrent catheter-related bloodstream infections: Risk factors and outcome. Erbay A, Ergönül O, Stoddard GJ, Samore MH. Int J Infect Dis. 2006 Sep;10(5):396-400. Epub 2006 May 15. PMID: 16702008
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30.Analysis of risk-factors among patients with Crimean-Congo haemorrhagic fever virus infection: severity criteria revisited. Ergonul O, Celikbas A, Baykam N, Eren S, Dokuzoguz B. Clin Microbiol Infect. 2006 Jun;12(6):551-4. PMID: 16700704
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29.Cognitive and emotional changes in neurobrucellosis. Eren S, Bayam G, Ergönül O, Celikbaş A, Pazvantoğlu O, Baykam N, Dokuzoğuz B, Dilbaz N. J Infect. 2006 Sep;53(3):184-9. Epub 2006 May 2. PMID: 16647757
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28.The lack of Crimean-Congo hemorrhagic fever virus antibodies in healthcare workers in an endemic region. Ergonul O, Zeller H, Celikbas A, Dokuzoguz B. Int J Infect Dis. 2007 Jan;11(1):48-51. PMID: 16600655
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27.Crimean-Congo haemorrhagic fever. Ergönül O. Lancet Infect Dis. 2006 Apr;6(4):203-14. Review. PMID: 16554245
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26.Evaluation of serum levels of interleukin (IL)-6, IL-10, and tumor necrosis factor-alpha in patients with Crimean-Congo hemorrhagic fever. Ergonul O, Tuncbilek S, Baykam N, Celikbas A, Dokuzoguz B. J Infect Dis. 2006 Apr 1;193(7):941-4. Epub 2006 Feb 22.  PMID: 16518755
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25.[Two leptospirosis cases and review of the national literature]. Celikbaş AK, Ulu A, Eren S, Ergönül O, Dokuzoğuz B. Mikrobiyol Bul. 2005 Jul;39(3):357-61. Review. Turkish. PMID: 16358497
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24.[Short communication: clinical predictors of group A beta hemolytic streptococci isolation in upper respiratory tract infections]. Solak S, Ergönül O. Mikrobiyol Bul. 2005 Jul;39(3):333-7. Turkish. PMID: 16358493
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23.Mechanisms by which antibiotics promote dissemination of resistant pneumococci in human populations. Samore MH, Lipsitch M, Alder SC, Haddadin B, Stoddard G, Williamson J, Sebastian K, Carroll K, Ergonul O, Carmeli Y, Sande MA. Am J Epidemiol. 2006 Jan 15;163(2):160-70. Epub 2005 Nov 30. PMID: 16319292
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22.Risk factors for ciprofloxacin resistance among Escherichia coli strains isolated from community-acquired urinary tract infections in Turkey. Arslan H, Azap OK, Ergönül O, Timurkaynak F; Urinary Tract Infection Study Group. J Antimicrob Chemother. 2005 Nov;56(5):914-8. Epub 2005 Sep 20. PMID: 16174685
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21.[Case report: cutaneous tuberculosis and tuberculous osteomyelitis].
Celikbaş AK, Ulu A, Ergönül O, Eren S, Baykam N, Dokuzoguz B. Mikrobiyol Bul. 2005 Jan;39(1):95-9. Turkish. PMID: 15900843
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20.Crimean Congo hemorrhagic fever infection simulating acute appendicitis. Celikbaş A, Ergönül O, Dokuzoğuz B, Eren S, Baykam N, Polat-Düzgün A. J Infect. 2005 May;50(4):363-5. PMID: 15845439
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19.[A case report: Kikuchi-Fujimoto disease]. Ergönül O, Kocagül Celikbaş A, Altin N, Eren S, Baykam N, Dokuzoğuz B. Mikrobiyol Bul. 2004 Oct;38(4):455-9. Turkish. PMID: 15700674
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18.Occupational exposure to blood and body fluids among health care workers in Ankara, Turkey. Azap A, Ergönül O, Memikoğlu KO, Yeşilkaya A, Altunsoy A, Bozkurt GY, Tekeli E. Am J Infect Control. 2005 Feb;33(1):48-52. PMID: 15685135
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17.In vitro activity of meropenem in combination with ciprofloxacin against clinical isolates of Pseudomonas aeruginosa. Solak S, Willke A, Ergönül O, Tekeli E. Int J Antimicrob Agents. 2005 Feb;25(2):181-2. No abstract available. PMID: 15664492
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16.Risk of tuberculous infection among healthcare workers in a tertiary-care hospital in Ankara, Turkey. Keskiner R, Ergönül O, Demiroglu Z, Eren S, Baykam N, Dokuzoguz B. Infect Control Hosp Epidemiol. 2004 Dec;25(12):1067-71. PMID: 15636294
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15.Characteristics of B. melitensis versus B. abortus bacteraemias. Dokuzoğuz B, Ergönül O, Baykam N, Esener H, Kiliç S, Celikbaş A, Eren S, Esen B. J Infect. 2005 Jan;50(1):41-5. PMID: 15603839
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14.Revised definition of ‘fever of unknown origin’: limitations and opportunities. Ergönül O, Willke A, Azap A, Tekeli E. J Infect. 2005 Jan;50(1):1-5. PMID: 15603833
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13.Characteristics of patients with Crimean-Congo hemorrhagic fever in a recent outbreak in Turkey and impact of oral ribavirin therapy. 
Ergönül O, Celikbaş A, Dokuzoguz B, Eren S, Baykam N, Esener H. Clin Infect Dis. 2004 Jul 15;39(2):284-7. Epub 2004 Jul 2. PMID: 15307042
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12.Drug resistance of Shigella species: changes over 20 years in Turkey. Ergönül O, Imre A, Celikbaş A, Dokuzoğuz B. Int J Antimicrob Agents. 2004 May;23(5):527-8. No abstract available. PMID: 15120738
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11.In vitro antimicrobial susceptibility of Brucella species. Baykam N, Esener H, Ergönül O, Eren S, Celikbas AK, Dokuzoguz B. Int J Antimicrob Agents. 2004 Apr;23(4):405-7. PMID: 15081093
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10.Analysis of risk factors for laboratory-acquired brucella infections. Ergönül O, Celikbaş A, Tezeren D, Güvener E, Dokuzoğuz B. J Hosp Infect. 2004 Mar;56(3):223-7. PMID: 15003671
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09.[The value of the immunoglobulin G avidity test for the serologic diagnosis of brucellosis]. Kutlu SS, Celikbaş A, Ergönül O, Kutlu M, Aksaray S, Güvener E, Dokuzoğuz B. Mikrobiyol Bul. 2003 Oct;37(4):261-7. Turkish. PMID: 14748263
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08.Evaluation of antibiotic use in a hospital with an antibiotic restriction policy. Erbay A, Colpan A, Bodur H, Cevik MA, Samore MH, Ergönül O. Int J Antimicrob Agents. 2003 Apr;21(4):308-12. PMID: 12672575
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07.Analysis of the case fatality rate of tetanus among adults in a tertiary hospital in Turkey. Ergonul O, Erbay A, Eren S, Dokuzoguz B. Eur J Clin Microbiol Infect Dis. 2003 Mar;22(3):188-90. Epub 2003 Mar 1. PMID: 12649718
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06.Widal test in diagnosis of typhoid fever in Turkey. Willke A, Ergonul O, Bayar B. Clin Diagn Lab Immunol. 2002 Jul;9(4):938-41. PMID: 12093703
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05.Immunity to tetanus among adults in Turkey. Ergönül O, Sözen T, Tekeli E. Scand J Infect Dis. 2001;33(10):728-30. PMID: 11728035