Affiliation: | 1. Headache and Pain Unit, IRCCS San Raffaele Pisana, Rome, Italy;2. Neuroalgology Unit, Headache Center Fondazione IRCCS Istituto Neurologico “Carlo Besta”, Milan, Italy;3. Headache and Neurosonology Unit, Policlinico Universitario Campus Bio-Medico, Rome, Italy;4. Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, Palermo, Italy;5. Department of Medicine and Surgery, University of Parma, Parma, Italy Headache Center, Unit of Neurology, Azienda Ospedaliera–Universitaria of Parma, Parma, Italy;6. IRCCS Istituto delle Scienze Neurologiche, Bologna, Italy;7. Headache Center, Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy;8. Headache Center, Neurology Unit A.O.U. Mater Domini, Catanzaro, Italy;9. IRCCS Ospedale Policlinico San Martino, Genova, Italy;10. Headache Center, Department of Neurological Sciences and of Vision, Spedali Civili, Brescia, Italy;11. Department of Neurology-Stroke Unit, Laboratory of Neuroscience, Istituto Auxologico Italiano, IRCCS, Milano, Italy;12. Headache Center, Department of Neuroscience, Reproductive Sciences and Dentistry, University Federico II of Naples, Naples, Italy;13. National Centre for Disease Prevention and Health Promotion, National Institute of Health, Roma, Italy;14. Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Roma, Italy |