1. Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
2. Institute for Diagnosis and Care “Hermitage Capodimonte”, Naples 80100, Italy
3. Department of Psychology, University of Campania “Luigi Vanvitelli”, Caserta 81100, Italy
4. ICS Maugeri, Institute of Telese, IRCCS, Telese Terme, BN 82037, Italy