1. Institute of Psychiatry, HCFMUSP, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
2. Department of Neurology, Hospital Albert Einstein, São Paulo, Brazil
3. Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
4. Headache and Neurological Pain Research Group, Departament de Medicina, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
5. Headache Science & Neurorehabilitation Center, IRCCS C. Mondino Foundation, Pavia, Italy
6. Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
7. Department of Neurosciences, Department of Neurology, Hull York Medical School, Hull, Kingston upon Hull, UK
8. Department of Neurology and Department of Anaesthesia, Critical Care and Pain Medicine, BIDMC Comprehensive Headache Center, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
9. Neurology Department, Cerrahpaşa School of Medicine, Istanbul University, Istanbul, Turkey
10. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
11. Department of Neurology, University of Copenhagen, Copenhagen, Denmark
12. Division of Brain Sciences, Imperial College London, London, UK