1. Department of Neurology (L.Z., I.G., Y.K., X.Z., M.H., M.S.W., M.B., T.R.D.), University Medical Center Göttingen, Germany.
2. Sheffield Institute for Translational Neuroscience, University of Sheffield, United Kingdom (A.M.).
3. Istanbul Medipol University, Regenerative and Restorative Medical Research Center, Turkey (E.K., T.R.D.).
4. Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Germany (D.M.H.).
5. Department of Neuroradiology, University Hospital Basel, Switzerland (M.-N.P.).
6. Department of Neuropathology (M.S.W., J.O.), University Medical Center Göttingen, Germany.