1. Neuromuscular Unit, Dino Ferrari Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Foundation Ca’ Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
2. Neurology Unit, Neuroscience Section, Department of Pathophysiology and Transplantation, Dino Ferrari Centre, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
3. Sien–Servicios Integrales en Neurologia, Universidad de Antioquia, Medellin, Colombia
4. Department of Neurology, Columbia University Medical Center, New York, New York
5. Child Neuropsychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy
6. Child Neuropsychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy6Child Neuropsychiatry Unit, Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
7. Neuromuscular Diseases and Neuroimmunology Unit, Department of Clinical Neurosciences, IRCCS Foundation, Carlo Besta Neurological Institute, Milan, Italy
8. Reference Center for Rare Neuromuscular Disorders, Department of Neurosciences, University of Messina, Azienda Ospedaliera Universitaria Policlinico G. Martino, Messina, Italy