1. Danish Multiple Sclerosis CenterDepartment of Neurology, Copenhagen University Hospital, Copenhagen, Denmark
2. Danish Research Centre for Magnetic Resonance and Center for Integrated Molecular Brain Imaging, Copenhagen University Hospital, Hvidovre, Denmark
3. Neurobiology Research Unit and Center for Integrated Molecular Brain ImagingCopenhagen University Hospital, Copenhagen, Denmark
4. PET and Cyclotron UnitCopenhagen University Hospital, Copenhagen, Denmark
5. Department of Electrical EngineeringTechnical University of Denmark, Lyngby, Denmark