1. Neuroscience Section, Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
2. Department of Medical, Surgical, Neurological, Metabolic, and Aging Sciences, Headache Center, University of Campania “Luigi Vanvitelli”, Naples, Italy
3. Department of Health Sciences, Section of Clinical Pharmacology, Headache Center Careggi University Hospital, University of Florence, Florence, Italy
4. Neuroalgology Unit, Headache Center, Neurological Institute “C. Besta” IRCCS Foundation, Milan, Italy
5. Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sant’Andrea Hospital, Sapienza University, Rome, Italy
6. Headache Science Centre, IRCCS Mondino Foundation, Pavia, PV, Italy
7. Department of Brain and Behavioral Sciences, University of Pavia, Pavia, PV, Italy