1. Department of Psychiatry and Clinical PsychobiologyUniversity of BarcelonaBarcelona Catalonia Spain
2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de BarcelonaBarcelona Catalonia Spain
3. Movement Disorders Unit, Neurology Service, Hospital Clínic de BarcelonaBarcelona Catalonia Spain
4. Institute of Biomedical Research August Pi i Sunyer (IDIBAPS)Barcelona Catalonia Spain
5. Centre de Diagnostic per la Imatge, Hospital ClinicBarcelona Catalonia Spain