Baysefer A., Sirin S., Daneyemez M., Erdogan E., Gönül E., Seber N.: Lhermitte-Duclos Disease: A Provisional Diagnosis with MR Imaging (case report) European Association of Neurosurgical Societies. Winter Meeting February 13-16 1999 Warsaw.

Erdogan E. Baysefer A., Sirin S., Seber N.: Cranial Doppler application cranial defect Patients pre and post cranioplasty operation : Prospective Clinical Study (Oral Presentation). European Association of Neurosurgical Societies. Winter Meeting February 13-16 1999 Warsaw.

Erdogan E. Baysefer A., Sirin S., Seber N.: ICP monitoring in patients with severe head injury : Retrospective Clinical Study (Oral Presentation). European Association of Neurosurgical Societies. Winter Meeting February 13-16 1999 Warsaw.

Erdogan E , Gonul E, Timurkaynak E. Gunshot wound to the head (oral presentation) 12Th World Congress of the Neurosurgery, F614, 195, Sydney Ausralia 2001

Gonul E, Erdogan E, Akay KM, Duz B, Bedük A, Timurkaynak E „Penetrating Orbitocranial Traumas 7th Congress of Balkan Military Medical Committee 6-10 October 2002 Athens, Greece.

Erdogan E, Duz B, Karacalioglu O, Izci Y, Timurkaynak E. “Influence of Craniectomy on CSF Circulation: An Experimental Study in Rabbits” 12 th Europian Congress of Neurosurgery 7-12 September 2003/ C. Cultural de Belem/ Lisboa/ Portugal

Tehli O, Solmaz I, Kahraman S, Erdogan E, Onguru O, Bulakbasi N. MRI (Magnetic Resonance Imaging) Mismatch in Brain Lesions 2 nd International Symposium on Microneurosurgical Anatomy September 30- October 03 2004 Antalya Turkey

Erdogan E, Duz B, Karacalioglu O, Izci Y, Timurkaynak E. “Influence of Craniectomy on CSF Circulation” (Oral Presentation) 1st International Levantine Forum 7-9 November 2004 Bari Italy,

Yusuf Izci, Ersin Erdogan , Engin Gonul, Erdener Timurkaynak “ Ventricular Injury Following Cranial Gunshot Wounds” 1st International Levantine Forum 7-9 November 2004 Bari Italy ,

Yusuf Izci, Ersin Erdogan , Engin Gonul, Erdener Timurkaynak “ The Morphological Aspects Of Lumbar Plexus And Roots” 1st International Levantine Forum 7-9 November 2004 Bari Italy (Poster Award)

Erdogan E. Düz B, Karacalioglu O, Timurkaynak E, “RELATIONSHIP BETWEEN CRANIAL DEFECT AND PHYSIOLOGY OF CEREBROSPINAL FLUID An experimental study in rabbits” The 1 st Neurosurgery Conference On Internet 5 th January 2005

Microsurgical Principles of Epilepsy Surgery 3 rd International Symposium on Microneurosurgical Anatomy Nov. 5-8 2006 (Davetli Konusmaci)