1. Department of PathologyMedical Faculty of Ataturk University Erzurum Turkey
2. Department of BiochemistryErzurum Research Training Hospital Erzurum Turkey
3. Department of NeurosurgeryAtaturk University, Medical Faculty Erzurum Turkey
4. Department of AnesthesiologyMedical Faculty of Ataturk University Erzurum Turkey
5. Department of HistologyMedical Faculty of Ataturk University Erzurum Turkey
6. Department of HematologyErzurum Research Training Hospital Erzurum Turkey
7. Department of NeurosurgeryRecep Tayyip Erdogan University Rize Turkey
8. Department of PsychiatryBakirkoy Mental Diseases Education Hospital İstanbul Turkey