1 Center of Neurology, Department of Neurodegeneration and Hertie-Institute for Clinical Brain Research, University of TuebingenTuebingen, Germany; German Center for Neurodegenerative Diseases, University of TuebingenTuebingen, Germany.
2 Norwegian Centre for Movement Disorders, Stavanger University Hospital Stavanger, Norway.
3 Neuroscience Section, Center for Neurodegenerative Diseases (CEMAND), Department of Medicine and Surgery, University of Salerno Salerno, Italy.
4 Department of Neurology, Saarland University Hospital Homburg, Germany.
5 School of Social and Community Medicine, University of Bristol Bristol, UK.
6 Department of Neurology and Neuroscience Campus Amsterdam, VU University Hospital Amsterdam, Netherlands.
7 Department of Neurology, Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behavior Nijmegen, Netherlands.
8 Institute of Neuroscience, Newcastle University Newcastle, UK.
9 Department of Neurology, Philipps-Universität Marburg Marburg, Germany.
10 Institute of Neurological Sciences, Queen Elizabeth University Hospital Glasgow, UK.
11 Clinical and Experimental Neuroscience, Luxembourg Centre for Systems Biomedicine, University of LuxembourgBelval, Luxembourg; Centre Hospitalier LuxembourgLuxembourg, Luxembourg.
12 Nuffield Department of Clinical Neurosciences, Oxford Parkinson's Disease Centre, University of Oxford Oxford, UK.
13 Institute of Neurogenetics, University of Lübeck Lübeck, Germany.
14 Paracelsus-Elena-KlinikKassel, Germany; University Medical Center, Georg-August-Universität GöttingenGöttingen, Germany.
15 Department of Neurology, University of Rostock Rostock, Germany.
16 Department of Epidemiology and Biostatistics, Karolinska InstitutetStockholm, Sweden; Department of Clinical Neuroscience, Karolinska InstitutetStockholm, Sweden.
17 Center of Neurology, Department of Neurodegeneration and Hertie-Institute for Clinical Brain Research, University of TuebingenTuebingen, Germany; German Center for Neurodegenerative Diseases, University of TuebingenTuebingen, Germany; Department of Neurology, Christian-Albrechts UniversityKiel, Germany.