1. Department of NeurologyMedical University Innsbruck Innsbruck Austria
2. Institute of PsychiatryPsychology & Neuroscience at King's College and Parkinson Foundation International Centre of Excellence at King's College Hospital Denmark Hill London United Kingdom
3. Serviço de NeurologiaHospital Santa Maria Instituto de Medicina Molecular Faculdade de Medicina de Lisboa Lisboa Portugal
4. Edmond J Safra Program in Parkinson Disease, Movement Disorder ClinicToronto Western Hospital, and the University of Toronto Department of Medicine Toronto Ontario Canada
5. Department of Neurology and Karl Landsteiner Institute for Neuroimmunological and Neurodegenerative DisordersDanube Hospital Vienna Austria
6. Institute of Cardiology ResearchUniversity of Buenos Aires, National Research Council Buenos Aires Argentina
7. Departments of Psychiatry and NeurologyPerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
8. Parkinson's Disease and Mental Illness ResearchEducation and Clinical Centers, Philadelphia Veterans Affairs Medical Center Philadelphia Pennsylvania USA
9. CHDI Management/CHDI Foundation Princeton NJ USA
10. Instituto de Medicina MolecularUniversity of Lisbon Lisbon Portugal