1. Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
2. IRCCS – Fondazione Bietti, Rome, Italy
3. Specialization School in Medicine and Palliative Care, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
4. CHU de Liège, Neurology, Headache Research Unit, Citadelle Hospital, Liège, Belgium