1. University of Münster ; Department of Neurology; Albert-Schweitzer-Str.33 Münster Germany 48129
2. University of Antwerp - CDE; VIB - Department of Molecular Genetics, Neurogenetics Group; Universiteitsplein 1 Antwerpen Belgium BE-2610
3. Klinikum Osnabruck; Department of Neurology; Am Finkenhugel 1 Osnabruck Germany 49076
4. University of Münster; Co-ordinating Centre for Clinical Trials (KKS); Von-Esmarch-Str. 62 Münster Germany 48129