1. Department of Neurology Hospital Reina Sofía Tudela Navarra Spain
2. Aragon Institute for Health Research (IIS Aragon) Zaragoza Spain
3. Neurology Department Donostia University Hospital‐OSAKIDETZA San Sebastián Spain
4. ATHENEA Neuroclinics, Policlínica Gipuzkoa Grupo Quironsalud Donostia Spain
5. Department of Medicine, Faculty of Health Sciences University of Deusto Bilbao Spain
6. Neuroscience Area, Biodonostia Research Institute San Sebastián Spain
7. Headache Unit, Department of Neurology Hospital Clínico San Carlos Madrid Spain
8. Departmente of Medicine, School of Medicine Universidad Complutense Madrid Spain