1. Department of Neurology; Hospital Clínic de Barcelona; Barcelona Spain
2. Neurological Tissue Bank of the Biobanc-Hospital Clínic; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
3. Department of Neurology; Hospital Universitari Arnau de Vilanova; Lérida Spain
4. IRCCS Institute of Neurological Sciences; Bellaria Hospital; Bologna Italy
5. Department of Neurology; Hospital Vall d'Hebrón; Barcelona Spain
6. Department of Pathology; Complejo Hospitalario Regional Virgen Del Rocío; Sevilla Spain
7. Department of Neurology; University Medical Center; Göttingen Germany
8. CIBERNED (Network center for biomedical research of neurodegenerative diseases); Institute Carlos III, Ministry of Health; Madrid Spain
9. Institute of Neuropathology; Hospital Universitari de Bellvitge (IDIBELL); Barcelona Spain
10. General Subdirectorate of Surveillance and Response to Emergencies in Public Health; Department of Public Health in Catalonia; Barcelona Spain
11. Department of Experimental, Diagnostic and Specialty Medicine (DIMES); University of Bologna; Bologna Italy
12. Institute of Neurology; Medical University of Vienna; Vienna Austria