1. George-Huntington-Institute, Deilmann-Building IV, Technology-Park, Muenster, Germany
2. Department of Neurology, University of Muenster, Muenster, Germany
3. Department of Neurology, Asklepios Klinikum Harburg, Hamburg, Germany
4. Institute for Clinical Radiology, University of Muenster, Muenster, Germany
5. Institute of Biostatistics and Clinical Research, University of Muenster, Münster, Germany
6. Department of Neurodegenerative Diseases and Hertie-Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, Germany