1. Department of Neurology, Medical University of Graz, Graz, Austria
2. Department of Clinical Chemistry, Neurological Laboratory, BioMS-eu, VU University Medical Center Amsterdam, Amsterdam, The Netherlands
3. Department of Radiology (Division of Neuroradiology), Medical University of Graz, Graz, Austria
4. Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria