Affiliation: | 1. Headache and Pain Unit, IRCCS San Raffaele Pisana, Rome, Italy;2. Headache Center and Neurophysiology Unit, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy;3. Headache Center, Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, Napoli, Italy |