1. Institute of Neurological Sciences and Psychiatry, Hacettepe University, Ankara, Turkey
2. Department of Neurology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
3. Department of Pathology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
4. CERMEP – imagerie du vivant, Groupement Hospitalier Est, Bron, France
5. Biomedical Engineering Department, The University of Texas at Austin, Austin, Texas, USA