1. Department of Neurology and Neurosurgery, Navarra University Clinic, Pamplona, Spain
2. Neurology Department, Lozano Blesa University Clinical Hospital, Zaragoza, Spain
3. Instituto de Investigación Sanitaria Aragón (IISA), Zaragoza, Spain
4. Teva Pharma Spain, Madrid, Spain
5. Health Value, Madrid, Spain