1. Neurology Service; Hospital Universitario Donostia; San Sebastian Spain
2. Ilundain Fundazioa; San Sebastian Spain
3. Neuroscience Area. Biodonostia Research Institute; Spain
4. Centro de Investigación Biomédicas en Red Enfermedades Neurodegenerativas (CIBERNED), Institute Carlos III, Ministry of Economy and Competitiveness; Spain
5. Ikerbasque. Basque Foundation for Science; Bilbao Spain
6. Department of Neuroscience; University of the Basque Country UPV/EHU; Spain
7. Neurology Service, Multidisciplinary Sleep Unit, Hospital Clínic and Institut d'Investigació Biomèdiques August Pi i Sunyer; Spain
8. Nuclear Medicine Service, Hospital Clinic de Barcelona, Centro de Investigación Biomédica en Red Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Hospital Clinic de Barcelona; Spain
9. Unidad de Apoyo Metodológico. Hospital Universitario Donostia. Biodonostia Research Institute, REDISSEC; Spain
10. Neurology Service, Hospital Clinic de Barcelona, IDIBAPS; Spain