1. Department of Diagnostic and Interventional Neuroradiology University Medical Center Göttingen Göttingen Germany
2. Department of Clinical Neurophysiology University Medical Center Göttingen Göttingen Germany
3. Fachbereich Gesundheit FH Münster University of Applied Sciences Münster Germany
4. Institut der Kasseler Stottertherapie Bad Emstal Germany
5. Department of Cognitive Neurology, MR Research in Neurosciences University Medical Center Göttingen Göttingen Germany
6. Department of Neurology University Medical Center Göttingen Göttingen Germany
7. Department of Geriatrics University Medical Center Göttingen Göttingen Germany