1. German Center for Neurodegenerative Diseases (DZNE); Bonn Germany
2. APHP Department of Genetics; Groupe Hospitalier Pitié-Salpêtrière; Paris France
3. Institut du Cerveau et de la Moelle; INSERM U1127; CNRS UMR7225; Sorbonne Universités-UPMC Université Paris VI UMR_S1127; Paris France
4. Department of Neurology and Hertie-Institute for Clinical Brain Research; University of Tübingen; Tübingen Germany
5. German Center for Neurodegenerative Diseases (DZNE); Tübingen Germany
6. Department of Neurology and Neuroscience Research Program; Methodist Hospital Research Institute; Houston Texas USA
7. Department of Neurology; Medical University Innsbruck; Innsbruck Austria
8. School of Health Professions; Peninsula Allied Health Center; University of Plymouth; United Kingdom
9. Murdoch Children's Research Institute; Melbourne Australia
10. Clinical Genetics; Austin Health; Heidelberg Victoria Australia
11. Ataxia Centre Department of Molecularneuroscience; UCL Institute of Neurology; London United Kingdom
12. Institut du Cerveau et de la Moelle (ICM) epiniere; Centre de NeuroImagerie de Recherche (CENIR); Paris France
13. Service de Neuroradiologie; Groupe Hospitalier Pitie-Salpetriere; Paris France
14. Unit of Genetics of Neurodegenerative and Metabolic Disorders; Fondazione IRCCS-Istituto Neurologico Carlo Besta; Milan Italy
15. Department of Medical Genetics and Szentagothai Research Center; University of Pécs; Pécs Hungary
16. Université Libre de Bruxelles; Brussels Belgium
17. Department of Neurology; Oslo University Hospital; Oslo Norway
18. Faculty of Medicine; Oslo University; Oslo Norway
19. Department of Neurology; Essen University Hospital; University of Duisburg-Essen; Essen Germany
20. Department of Neurology; Graduate School of Medicine; The University of Tokyo; Tokyo Japan
21. Department of Neurology and JARA Brain; University Hospital; RWTH Aachen; Aachen Germany
22. Department of Neurology; Radboud University Medical Center; Donders Institute for Brain, Cognition, and Behavior; Nijmegen The Netherlands
23. Department of Neurology; University Hospital of Bonn; Bonn Germany