1. Department of HematologyFaculty of Medicine, Gazi University, Beşevler, Ankara, Turkey
2. Department of NeurosurgeryFaculty of Medicine, Gazi University, Beşevler, Ankara, Turkey
3. Department of Infectious DiseaseFaculty of Medicine, Gazi University, Beşevler, Ankara, Turkey
4. Department of RadiologyFaculty of Medicine, Gazi University, Beşevler, Ankara, Turkey
5. Department of MicrobiologyFaculty of Medicine, Gazi University, Beşevler, Ankara, Turkey