1. Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Center Milan University Via Manzoni 56, Rozzano Milan 20089 Italy
2. LFB Les Ulis France
3. Dellmed Consulting Ornex France
4. Department of Neurology NeuroCenter, Regional Specialist Hospital Bydgoszcz Poland
5. Istituti Clinici Scientifici Maugeri Turin Italy
6. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic and Maternal and Infantile Sciences (DINOGMI) University of Genova and IRCCS Policlinico San Martino Genova Italy