ULUSLARASI YAYINLAR 1) Tokgözoğlu L, Alikaşifoğlu M, Atalar E, Tunçbilek E, Övünç K, Aksöyek S, Kabakçı G, Ünsal İ, Kes S. Angiotensin converting enzyme gene polymorphism and the risk and extent of ischemic heart disease among Turkish population. Coronary Artery Disease;8:137-142 (1997). 2) Caner B, Karanfil A, Uysal U, Tokgözoğlu L, Aksöyek S, Çiftçi İ, Atalar E, Kes S, Bekdik C. Effect of an additional atropine injection during dobutamine infusion for myocardial SPECT. Nuclear Medicine, 18:567-573 (1997). 3) Ergün EL, Caner B, Atalar E, Karanfil A, Tokgözoğlu L. Paradoxical hypotension during dobutamine infusion for myocardial perfusion scintigraphy. Nuklearmedizin, 37:268-271 (1998). 4) Batur M, Aksöyek S, Oto A, Yıldırır A, Özer N, Atalar E, Aytemir K, Kabakçı G, Övünç K, Özmen F, Kes S. Circadian variations of QTc dispersion: Is it a clue to morning increase of sudden cardiac death. Clinical Cardiology, 22:103-106 (1999). 5) Tokgözoğlu L, Alikaşifoğlu M, Ünsal İ, Atalar E, Aytemir K, Özer N, Övünç K, Kes S, Tunçbilek E. Methylene tetrahydrofolate reductase genotype and the risk and extent of coronary artery disease in a population with low plasma folate. Heart, 81:518-522 (1999). 6) Pericardial tamponade in a 65-year-old woman. Usalan C, Atalar E, Vural F. Postgraduate Medical Journal, 75:183-184 (1999). 7) Aytemir K, Özer N, Atalar E, Sade E, Aksöyek S, Övünc K, Oto A, Özmen F, Kes S. P wave dispersion on 12 lead electrocardiography in patients with paroxysmal atrial fibrillation. Pacing Clin Electrophysiol, 23:1109-12 (2000). 8) Aytemir K, Yıldırır A, Büyükaşık Y, Atalar E, Özer N, Aksöyek S, Övünç K, Kabakçı G, Özmen F, Ali Oto. Assesment of autonomic nervous system functions in patients with vitamin B12 deficiency by power spectral analysis of herat rate variability. Pacing Clin Electrophysiol, 23:975-81 (2000). 9) Özer N, Aytemir K, Atalar E, Sade E, Aksoyek S, Övünç K, Açıl T, Nazlı N, Özmen F, Oto A, Kes S. P wave dispersion in hypertensive patients with versus without paroxysmal atrial fibrillation. Pacing Clin Electrophysiol, 23 :1859-62 (2000). 10) Oto A, Atalar E, Yıldırır A, Kabakçı G. Two cases of inappropriate shocks diagnosed by stored electrograms of implantable cardioverter defibrillators. Angiology; 51:425-430 (2000). 11) Atalar E, Aytemir K, Özmen F. Decreased soluble L-selectin levels do not indicate leukocyte activation. Intensive Care Medicine, 26:486 (2000). 12) Atalar E, Haznedaroğlu İ, Aytemir K, Aksöyek S, Övünç K, Oto A, Özmen F. Effects of stent coating on platelets and endothelial cells after intracoronary stent implantation. Clinical Cardiology, 23:159-166 (2001). 13) Atalar E, Aytemir K, Haznedaroğlu I, Ozer N, Ovunc K, Aksoyek S, Kes S, Kirazlı S, Ozmen F. Increased levels of soluble selectins in patients with unstable angina. Int J Cardiol, 78:69-73 (2001). 14) Atalar E, Haznedaroglu İ, Aytemir K, Ozer N, Aksoyek S, Ovunc K, Kirazlı S, Ozmen F. Circulating adhesion molecules in patients with stable coronary artery disease. İnt J Hematol, 72:507-511 (2001). 15) Atalar E, Aytemir K, Haznedaroğlu İ, Aksöyek S, Övünç K, Kirazli Ş, Özmen F . Platelet and leukocyte deactivation after intracoronary stent placement in patients receiving combined antiplatelet therapy. Clin Appl Thromb/Hemostasis, 7:116-21 (2001). 16) Özmen F, Atalar E, Aytemir K, Özer N, Açıl T , Övünç K, Aksöyek S, Kes S. Effect of Balloon Induced Acute Ischemia on P Wave Dispersion During Percutaneous Transluminal Coronary Angioplasty. Europace, 5;2: (2001) 17) Özer N, Aytemir K, Kuru G, Atalar E, Özer Y, Övünç K, Aksöyek S, Gürsel G, Kes S. Hydatid cyst of the heart as a rare cause of embolization: Report of 5 cases and review of published reports. J Am Soc Echocardiogr, Apr;14(4):299-302 (2001). 18) Özer N, Can İ, Aytemir K, Erman M, Atalar E, Övünç K, Aksöyek S, Demirkazık F, Kes S. Malignant thymoma invading the right atrium: a rare echocardiographic finding. Echocardiography Journal of Cardiovascular Ultrasound and Applied Techniques 2001 19) Övünç K, Aytemir K, Özer N, Atalar E, Aksöyek S, Nazlı N, Gürsel G, Kes S. Percutaneous balloon pericardiotomy for patients with malignant pericardial effusion including three malignant pleural mesotheliomas. Angiology, 52:323-329 (2001). 20) Atalar E, Aytemir K, Açıl T, Özer N, Aksöyek S, Övünç K, Özmen F. Acute anterior myocardial infarction following a mild non-penetrating chest trauma. A case report. Angiology, 52:279-282 (2001). 21) Atalar E, Açıl T, Aytemir K, Haznedaroğlu İ, Özer N, Kılıç H, Kuru G, Aksöyek S, Övünç K, Kes S, Kirazlı Ş, Özmen F. Diminished Global fibrinolytic capacity in patients with mitral valve prolapse is associted with transient ischemic attacts. Clin Applied Throm Hemost 8:-44;2002. 22) Atalar E, Ozmen F, Haznedaroglu I, Ozer N, Aksoyek S, Ovunc K, Nazli N, Kirazli S, Kes S. Impaired fibrinolytic capacity in rheumatic mitral stenosis with or without atrial fibrillation and nonrheumatic atrial fibrillation. Int J Hematol. 2002 Aug;76(2):192-5. 23) Haznedaroğlu İ, Atalar E, Öztürk A, Özer N, Övünç K, Aksöyek S, Kes S, Kirazlı Ş, Özmen F. Thrombopoietin inside the pulmonary vessels in patients with and without pulmonary hypertension. Platelets 13;395-399 (2002). 24) Atalar E, Özmen F, Haznedaroğlu İ, Acil T, Özer N, Övünç K, Aksöyek S, Kes S. Effects of short-term atorvastatin treatment on global fibrinolytic capacity, and sL-selectin And sFas levels in hyperlipidemic patients with coronary artery disease. International J Cardiology 84;227-231 (2002). 25) Alikaşifoğlu M, Tokgözoğlu L, Acil T, Atalar E, Oto A, Kes S, Tunçbilek E. Tumor necrosis factor-alpha polymorphism in Turkish patients with dilated cardiomyopathy. The European Journal of Heart Failure 5;161-163 (2003). 26) Atalar E, Tokgözoğlu L, Alikaşifoğlu M, Övünç K, Aksöyek S, Kes S, Tunçbilek E. Angiotensin Converting Enzyme Genotype predicts Valve damage in Acute Rheumatic Fever. The Journal of Heart Valve Disease, 12;7-10 (2003). 27) Kiraz S, Ertenli İ, Öztüek A, Haznedaroğlu İ, Çalguneri M, Atalar E, Özbalkan Z, Kirazlı Ş, Çelik İ. Increased soluble Fas suggest delayed apoptosis in Familial Mediterranean Faver complicated with amiloidosis. The Journal of Rheumatology 30;313-315 (2003). 28) Köse S, Aytemir K, Sade E, Can İ, Özer N, Amasyalı B, Aksöyek S, Övünç K, Özmen F, Atalar E, Işık E, Demirtaş E, Oto A. Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P-wave dispersion. Clinical Cardiology 26;431-434 (2003). 29) Atalar E, Haznedaroğlu İ, Acil T, Özer N, Kılıç H, Övünç K, Aksöyek S, Nasıh N, Kes S, Kabakçı G, Kirazlı Ş, Özmen F. Patients with paroxysmal atrial fibrillation but not paroxysmal supraventricular tacycardia dispaly evidenve of platelet activation during arrhytmia. Platelets (2003). 30) Ozer N, Can I, Atalar E, Sade E, Aksoyek S, Ovunc K, Aytemir K, Tokgozoglu L, Ozmen F, Kes S. Left ventricular long-axis function is reduced in patients with rheumatic mitral stenosis. Echocardiography. 2004 Feb;21(2):107-12. 31) Kekilli M, Beyazit Y, Purnak T, Dogan S, Atalar E. Acute myocardial infarction after sildenafil citrate ingestion. Ann Pharmacother. 2005 Jul-Aug;39(7-8):1362-4. 32) Atalar E, Coskun S, Haznedaroglu IC, Yucel N, Ozer N, Sivri B, Aksoyek S, Ovunc K, Ozmen F. Immediate effects of fluvastain on circulating soluble endothelial protein C and free tissue factor pathway inhibitor in acute coronary syndromes. Cardiovasc Drugs Ther. 2005 May;19(3):177-81. 33) Ozer N, Ciftci O, Demirci M, Atalar E, Ovunc K, Aksoyek S, Ozmen F, Kes S. Right ventricular outflow tract thrombus in a case of Behcet's disease. J Am Soc Echocardiogr. 2005 Apr;18(4):380-2. 34) Ozer N, Engin H, Akgul E, Sahiner L, Atalar E, Aksoyek S, Ovunc K, Ozmen F, Kes S. An unusual case of recurrent mass in the right atrium: intravenous leiomyomatosis. Echocardiography. 2005 Jul;22(6):514-6. 35) Ozer N, Yavuz B, Atalar E. Recurrent syncope in a case of metastatic malignant melanoma – An unusual presentation of an uncommon disease. Eur J Echocardiogr. 2005 Dec 24. 36) Ozer N, Kilic H, Arslan U, Atalar E, Aksoyek S, Ovunc K, Ay H, Ozturk E, Karaagaoglu E, Tokgozoglu L, Kes SS. Echocardiographic predictors of left atrial appendage spontaneous echocontrast in patients with stroke and atrial fibrillation. J Am Soc Echocardiogr. 2005 Dec;18(12):1362-5. 37) Atalar E, Haznedaroglu IC, Kilic H, Ozer N, Coskun S, Ozturk E, Aksoyek S, Ovunc K, Kirazli S, Ozmen F. Increased soluble glycoprotein V concentration during the acute onset of unstable angina pectoris in association with chronic cigarette smoking. Platelets. 2005 Sep;16(6):329-33. 38) Ozer N, Yavuz B, Can I, Atalar E, Aksoyek S, Ovunc K, Ozmen F, Kes S. Doppler tissue evaluation of intra-atrial and interatrial electromechanical delay and comparison with P-wave dispersion in patients with mitral stenosis. J Am Soc Echocardiogr. 2005 Sep;18(9):945-8. 39) Atalar PT, Atalar E, Kilic H, Abbasoglu OE, Ozer N, Aksoyek S, Ovunc K, Ozmen F, Gursel E. Impaired systemic endothelial function in patients with pseudoexfoliation syndrome. Int Heart J. 2006 Jan;47(1):77-84. 40) Guven GS, Isildak M, Ozcakar L, Atalar E. Acute rheumatic fever at first glance, Brucella with a glance in depth. Anadolu Kardiyol Derg. 2006 Mar;6(1):85. 41) Guvener M, Dogan OF, Atalar E, Yilmaz M, Demircin M. The interventricular septal giant hydatid cyst caused by biventricular outflow tract obstruction. Saudi Med J. 2006 Apr;27(4):549-50. 42) Yavuz B, Atalar E, Karadag O, Tulumen E, Ozer N, Akdogan A, Ertenli I, Kiraz S, Calguneri M, Ozmen F. QT dispersion increases in patients with systemic lupus erythematosus. Clin Rheumatol. 2007 Mar;26(3):376-9. Epub 2006 Aug 2. 43) Guven GS, Atalar E, Yavuz B, Beyazit Y, Kekilli M, Kilicarslan A, Sahiner L, Oz G, Ozer N, Aksoyek S, Haznedaroglu IC, Sozen T. Simvastatin treatment improves endothelial function and increases fibrinolysis in patients with hypercholestrolemia. J Natl Med Assoc. 2006 Apr;98(4):627-30. 44) Atalar E, Ozturk E, Ozer N, Haznedaroglu IC, Kepez A, Coskun S, Aksoyek S, Ovunc K, Kes S, Kirazli S, Ozmen F. Plasma soluble osteopontin concentrations are increased in patients with rheumatic mitral stenosis and associated with the severity of mitral valve calcium. Am J Cardiol. 2006 Sep 15;98(6):817-20. 45) Coskun S, Atalar E, Ozturk E, Yavuz B, Ozer N, Goker H, Ovunc K, Aksoyek S, Kes S, Sivri B, Kirazli S, Ozmen F. Plasma osteopontin levels are elevated in non-ST-segment elevation acute coronary syndromes. J Natl Med Assoc. 2006 Nov;98(11):1746-50. 46) Gunalp M, Atalar E, Coskun F, Yilmaz A, Aksoyek S, Aksu NM, Sivri B.Holter monitoring for 24 hours in patients with thromboembolic stroke and sinus rhythm diagnosed in the emergency department. Adv Ther. 2006 Nov-Dec;23(6):854-60. 47) Karadag O, Calguneri M, Yavuz B, Atalar E, Akdogan A, Kalyoncu U, Kiraz S, Aksoyek S, Ozmen F, Ertenli AI. B-type natriuretic peptide (BNP) levels in female systemic lupus erythematosus patients: what is the clinical significance? Clin Rheumatol. 2007 Feb 21; 48) Ozer N, Deniz A, Atalar E, Aksoyek S, Ovunc K, Kes SS. Aorta-right atrial fistula: a rare complication of prosthetic aortic valvular endocarditis. J Am Soc Echocardiogr. 2007 May;20(5):538.e5-6. 49) Ozer N, Kepez A, Kaya B, Kilic H, Deniz A, Arslan U, Atalar E, Ovunc K, Aksoyek S. Determination of left ventricular filling pressure by new echocardiographic methods in patients with coronary artery disease. Int J Cardiovasc Imaging. 2007 Jun 1; 50) Ozer N, Deniz A, Piskinpasa S, Kilickap S, Kepez A, Hazirolan T, Atalar E, Ovunc K, Aksoyek S. Renal cell carcinoma extending from superior vena cava into right atrium. J Am Soc Echocardiogr. 2007 May;20(5):538.e7-8. 51) Ucar HI, Tok M, Atalar E, Dogan OF, Oc M, Farsak B, Guvener M, Yilmaz M, Dogan R, Demircin M, Pasaoglu I. Predictive significance of plasma levels of interleukin-6 and high-sensitivity C-reactive protein in atrial fibrillation after coronary artery bypass surgery. Heart Surg Forum. 2007;10(2):E131-5. 52) Acil T, Atalar E, Sahiner L, Kaya B, Haznedaroglu IC, Tokgozoglu L, Ovunc K, Aytemir K, Ozer N, Oto A, Ozmen F, Nazli N, Kes S, Aksoyek S. Effects of acute exercise on fibrinolysis and coagulation in patients with coronary artery disease. Int Heart J. 2007 May;48(3):277-85. 53) Kilic H, Atalar E, Necla O, Ovunc K, Aksoyek S, Ozmen F. QT interval dispersion changes according to the vessel involved during percutaneous coronary angioplasty. J Natl Med Assoc. 2007 Aug;99(8):914-6. 54) Ozer N, Kilic H, Kepez A, Kaya EB, Deniz A, Atalar E, Aksoyek S, Ovunc K, Ozmen F, Kes S. Comparison of strain doppler echocardiography and radiologic left ventriculography for quantitative assessment of regional myocardial function. Int J Cardiovasc Imaging. 2007 Sep 1. 55) Kilic H, Atalar E, Ozer N, Ovunc K, Aksoyek S, Ozmen F, Akdemir R. Early electrocardiographic diagnosis of acute coronary ischemia on the paced electrocardiogram. Int J Cardiol. 2008 Oct 30;130(1):14-8. 56) Kilicarslan A, Yavuz B, Guven GS, Atalar E, Sahiner L, Beyazit Y, Kekilli M, Ozer N, Oz G, Haznedaroglu IC, Sozen T. Fenofibrate improves endothelial function and decreases thrombin-activatable fibrinolysis inhibitor concentration in metabolic syndrome. Blood Coagul Fibrinolysis. 2008 Jun;19(4):310-4. 57) Ucar HI, Atalar E, Oc M, Akbulut B, Oc B, Dogan OF, Yavuz B, Ozer N, Guvener M, Yilmaz M, Aytemir K, Dogan R, Demircin M, Pasaoglu I. The role of surface ECG and transthoracic echocardiography for predicting postoperative atrial fibrillation after coronary artery bypass surgery. Saudi Med J. 2008 Mar;29(3):352-6. 58) Aryan M, Kepez A, Atalar E, Hazirolan T, Haznedaroglu I, Akata D, Ozer N, Aksoyek S, Ovunc K, Ozmen F. Association of plasma osteopontin levels with coronary calcification evaluated by tomographic coronary calcium scoring. J Bone Miner Metab. 2009 Apr 14. 59) Aryan M, Kepez A, Atalar E, Hazirolan T, Haznedaroglu I, Akata D, Ozer N, Aksoyek S, Ovunc K, Ozmen F. Association of plasma osteopontin levels with coronary calcification evaluated by tomographic coronary calcium scoring. J Bone Miner Metab. 2009;27(5):591-7. Epub 2009 Apr 14. 60) Sinici I, Karahan S, Atalar E. Distribution of endothelial nitric oxide synthase gene polymorphisms in Turkish population. J Investig Med. 2009 Oct;57(7):769-76. 61) Sinici I, Atalar E, Kepez A, Hayran M, Aksoyek S, Tokgozoglu L, Ozmen F. Intron 4 VNTR polymorphism of eNOS gene is protective for cardiac syndrome X. J Investig Med. 2010 Jan;58(1):23-7. 62) Sinici I, Kalyoncu U, Karahan S, Kiraz S, Atalar E. Endothelial nitric oxide gene polymorphism and risk of systemic sclerosis: predisposition effect of T-786C promoter and protective effect of 27 bp repeats in Intron 4. Clin Exp Rheumatol. 2010 Mar 31. 63) Association for Percutaneous Cardiovascular Interventions, Wijns W, Kolh P, Danchin N, Di Mario C, Falk V, Folliguet T, Garg S, Huber K, James S, Knuuti J, Lopez-Sendon J, Marco J, Menicanti L, Ostojic M, Piepoli MF, Pirlet C, Pomar JL, Reifart N, Ribichini FL, Schalij MJ, Sergeant P, Serruys PW, Silber S, Sousa Uva M, Taggart D; ESC Committee for Practice Guidelines, Vahanian A, Auricchio A, Bax J, Ceconi C, Dean V, Filippatos G, Funck-Brentano C, Hobbs R, Kearney P, McDonagh T, Popescu BA, Reiner Z, Sechtem U, Sirnes PA, Tendera M, Vardas PE, Widimsky P; EACTS Clinical Guidelines Committee, Kolh P, Alfieri O, Dunning J, Elia S, Kappetein P, Lockowandt U, Sarris G, Vouhe P, Kearney P, von Segesser L, Agewall S, Aladashvili A, Alexopoulos D, Antunes MJ, Atalar E, Brutel de la Riviere A, Doganov A, Eha J, Fajadet J, Ferreira R, Garot J, Halcox J, Hasin Y, Janssens S, Kervinen K, Laufer G, Legrand V, Nashef SA, Neumann FJ, Niemela K, Nihoyannopoulos P, Noc M, Piek JJ, Pirk J, Rozenman Y, Sabate M, Starc R, Thielmann M, Wheatley DJ, Windecker S, Zembala M. Guidelines on myocardial revascularization: The Task Force on Myocardial Revascularization of the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS). European Eur Heart J. 2010 Oct;31(20):2501-55. Epub 2010 Aug 29. 64) Atalar E, Okutucu S, Aksoy H, Demiri E, Aksoyek S. Are the conventional cutoff values adequate to define hypertension in young women? Blood Press Monit. 2010 Dec;15(6):296-9. 65) Sahin M, Coskun S, Cobanoglu M, Kilicaslan I, Atalar E. Rapidly onset rectus sheath hematoma mimicking cholecystitis. Am J Emerg Med. 2010 Oct 29. 66) Aksoy H, Okutucu S, Karakulak UN, Atalar E. Incomplete pacemaker lead fracture revealed by superficial maneuvers.] Turk Kardiyol Dern Ars. 2010;38(5):363-365. Turkish. 67) Kaya EB, Ozer N, Aksoy H, Deveci OS, Tülümen E, Okutucu S, Yorgun H, Atalar E, Aksöyek S, Ozmen F, Ovünç K, Kes S, Ozkutlu H. Mean systolic annular velocity and strain score index: new and non-invasive parameters for the evaluation of acute myocardial infarction patients]. Anadolu Kardiyol Derg. 2010 Jun;10(3):239-46. doi: 10.5152/akd.2010.064. Turkish. 68) Ozer N, Aksoy H, Deveci OS, Tülümen E, Atalar E, Ovünç K, Aksöyek S. Coexistence of cor triatriatum and rheumatic mitral stenosis in an adult patient. Anadolu Kardiyol Derg. 2010 Apr;10(2):187-8. doi: 10.5152/akd.2010.048. 69) Kaya EB, Ozer N, Deveci OS, Kepez A, Tülümen E, Aksöyek S, Atalar E, Ovünç K, Ozmen F, Ozkutlu H. The early predictors of ventricular remodeling after myocardial infarction: the role of tumor necrosis factor-alpha]. Anadolu Kardiyol Derg. 2009 Apr;9(2):84-90. Turkish. 70) Aybal Kutlugün A, Erdem Y, Okutucu S, Yorgun H, Atalar E, Arici M. Effects of lowering dialysate sodium on flow-mediated dilatation in patients with chronic kidney disease. Nephrol Dial Transplant. 2011 Nov;26(11):3678-82. 71) Canpolat U, Sunman H, Yorgun H, Atalar E. Acute stent thrombosis during percutaneous coronary intervention: Treatment with tirofiban. Herz. 2011 Sep 18. 72) Ozer N, Okutucu S, Kepez A, Aksoy H, Deveci OS, Atalar E, Ovünç K, Aksöyek S. Diagnostic accuracy and clinical utility of echocardiographic indices for detecting left ventricular diastolic dysfunction in patients with coronary artery disease and normal ejection fraction. Anadolu Kardiyol Derg. 2011 Oct 28. 73) Canpolat U, Dural M, Atalar E. Acute inferior myocardial infarction in a young female patient with polyarteritis nodosa. Herz. 2012 Feb 2. 74) Canpolat U, Yorgun H, Atalar E. Simultaneous subacute thrombosis of bare metal coronary stents in two different arteries early after clopidogrel cessation. Cardiol J. 2012;19(3):309-13. 75) Kozan O, Ozcan EE, Sancaktar O, Kabakcı G; Turkish investigators of the i-SEARCH study. The prevalence of microalbuminuria and relevant cardiovascular risk factors in Turkish hypertensive patients. Turk Kardiyol Dern Ars. 2011 Dec;39(8):635-45. 76) Atalar E, Yorgun H, Canpolat U, Sunman H, Kepez A, Kocabaş U, Ozer N, Ovünç K, Aksöyek S, Ozmen F. Prevalence of coronary artery disease before valvular surgery in patients with rheumatic valvular disease. Coron Artery Dis. 2012 Dec;23(8):533-7 77) Karakiliç E, Büyükcam F, Kocalar G, Gedik S, Atalar E. Same effect of sublingual and oral captopril in hypertensive crisis. Eur Rev Med Pharmacol Sci. 2012 Nov;16(12):1642-5. 78) Kilic H, Atalar E, Lay I, Yazihan N, Buyukcam F, Saygisunar U, Aksoy M, Gunduz H, Akdemir R. High-density lipoprotein subfractions and influence of endothelial lipase in a healthy Turkish population: A study in a land of low high-density lipoprotein cholesterol. Scand J Clin Lab Invest. 2014 Jan 30. [Epub ahead of print].

Girişimsel Kardiyoloji Koroner Arter Hastalığı Hipertansiyon Kalp Yetmezliği Aritmi

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: eatalar@hacettepe.edu.tr