1. Neurology Department; Hospital Santo Antonio, Centro Hospitalar Porto; Porto Portugal
2. Unit for Multidisciplinary Research in Biomedicine, Instituto de Ciencias Biomedicas de Abel Salazar, Universidade do Porto; Porto Portugal
3. Nuffield Department of Clinical Neurosciences, Oxford University Hospitals, University of Oxford; UK
4. Centro Hospitalar do Porto; Porto Portugal
5. Neurology Department; Hospital Sao Joao; Porto Portugal
6. Neurology Department; Centro Hospitalar de Vila Nova de Gaia e Espinho; Gaia Portugal
7. Neurology Department; Hospital Pedro Hispano; Matosinhos Portugal
8. Neurology Department; Hospital de Sao Pedro, Centro Hospitalar do Trás-os-Montes e Alto Douro; Vila Real Portugal
9. Neurology Department; Centro Hospitalar do Alto Minho; Viana do Castelo Portugal
10. Neurology Department; Centro Hospitalar Entre Douro e Vouga; Feira Portugal
11. Neurology Department; Hospital de Braga; Braga Portugal
12. Neurology Department; Centro Hospitalar do Nordeste; Mirandela Portugal
13. Neurology Department; Hospital de São Teotonio; Viseu Portugal
14. Neurology Department; Centro Hospitalar Universitario de Coimbra; Coimbra Portugal
15. Neurology Department; Centro Hospitalar do Vale do Sousa; Penafiel Portugal
16. Neuropediatrics Department; Centro Materno Infantil Norte, Centro Hospitalar Porto; Porto Portugal
17. Neuropediatrics Department; Hospital de Sao Joao; Porto Portugal
18. Instituto de Ciencias Biomedicas Abel Salazar, Universidade do Porto; Porto Portugal