1 Department of Neurology, Donders Center for Medical Neurosciences, Radboud University Medical Center, Nijmegen, Netherlands.
2 Department of Neurology, Canisius Wilhelmina Hospital, Nijmegen, Netherlands.
3 Department of Rheumatology, Rijnstate Hospital, Arnhem, Netherlands.
4 Department of Pathology, Radboud University Medical Center, Nijmegen, Netherlands.
5 Department of Medical Imaging, Radboud University Medical Center, Nijmegen, Netherlands.
6 Department of Neurology, Donders Center for Medical Neurosciences, Radboud University Medical Center, Nijmegen, Netherlands. Electronic address: anil.tuladhar@radboudumc.nl.