1. Department of Neurosciences San Camillo‐Forlanini Hospital Rome Italy
2. Centre d'Esclerosi Multiple de Catalunya (Cemcat) Department of Neurology/Neuroimmunology Hospital Universitari Vall d'HebronUniversitat Autonoma de Barcelona Barcelona Spain
3. Multiple Sclerosis Centre ASST Spedali Civili di BresciaP.O. Montichiari Montichiari, Brescia Italy
4. Department of Human Neuroscience Sapienza University Rome Italy