1. Department of Neurology; Leiden University Medical Center; Leiden The Netherlands
2. Center for Proteomics and Metabolomics; Leiden University Medical Center; Leiden The Netherlands
3. Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
4. Percuros BV; Enschede The Netherlands
5. In-vivo-NMR Laboratory; Max Planck Institute for Neurological Research; Cologne Germany
6. Department of Human Genetics; Leiden University Medical Center; Leiden The Netherlands
7. Fondazione Pisana per la Scienza ONLUS; Pisa Italy