1. Neurology and Stroke Unit, Department of Neurosciences, Niguarda Neuro Center, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy;
2. Headache and Pain Unit, Department of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy;
3. San Raffaele University, Rome, Italy;
4. Headache Center, Neurology and Stroke Unit Division, S. Carlo Borromeo Hospital, ASST Santi Paolo e Carlo, Milan, Italy;
5. Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy;
6. TEVA Italia Srl, Milan, Italy;
7. IQVIA, Milan, Italy