1. Laboratory of Clinical Pharmacology and Therapeutics and Instituto de Medicina Molecular; Faculty of Medicine; University of Lisbon; Lisbon Portugal
2. Department of Neurology; SMZ-Ost Donauspital; Vienna Austria
3. Department of Neurology; Donders Institute for Brain; Cognition and Behavior; Radboud University; Nijmegen Medical Center; Nijmegen The Netherlands
4. Department of Neurosciences; University of Pisa; Pisa Italy
5. Institute for Ageing and Health; Newcastle University; Newcastle upon Tyne UK
6. Department of Neurology; Christian-Albrechts-University Kiel; Kiel Germany
7. Department of Neurology; Oslo University Hospital and University of Oslo; Oslo Norway
8. Department of Neurology and Psychiatry and NEUROMED Institute; Sapienza, Università di Roma; Rome Italy
9. Department of Neurology; Medical University of Warsaw; Warsaw Poland
10. Department of Neurology; Palacky University; Olomouc Czech Republic
11. School of Medicine; Institute of Neurology CCS; University of Belgrade; Belgrade Serbia
12. Department of Rehabilitation Sciences; Faculty of Kinesiology and Rehabilitation; Katholieke Universiteit Leuven; Leuven Belgium
13. Department of Neurology; Central Hospital; Bremerhaven Germany
14. Department of Neurology; University Hospital; Lund Sweden
15. Department of Neurology; Innsbruck Medical University; Innsbruck Austria
16. Clinical Investigation Center (INSERM CIC-9302); Toulouse France
17. Departments of Clinical Pharmacology and Neurosciences; University Hospital and University of Toulouse; Toulouse France
18. Laboratório de Farmacologia Clinica e Terapêutica e Instituto de Medicina Molecular; Faculdade de Medicina de Lisboa; Lisbon Portugal
19. Département de Neurologie; Centre d'Investigation Clinique; AP-HP, INSERM CIC-9503; Hôpital Pitié-Salpétrière; Paris France
20. Department of Neurology; Bern University Hospital and University of Bern; Bern Switzerland
21. Neurology Service; Centro de Investigación; Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Hospital Clínic; IDIBAPS; Universitat de Barcelona; Barcelona Spain
22. Centre of Parkinsonism; Paracelsus-Elena Hospital; Kassel Germany
23. Department of Clinical Neurophysiology; University of Goettingen; Goettingen Germany
24. Institute of Neurology; University College London; London UK
25. Department of Neurology; Philipps-University of Marburg; Marburg Germany