1. IRCCS—Fondazione Bietti, Via Livenza 1, 00198 Rome, Italy
2. Multiple Sclerosis Unit, Policlinico Tor Vergata, Viale Oxford 81, 00133 Rome, Italy
3. Department of Systems Medicine, Tor Vergata University, Via Montpellier 1, 00133 Rome, Italy
4. Unit of Neurology, IRCCS—Neuromed, Via Atinense 18, 86077 Pozzilli, Italy