1. ALS Center, Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
2. Neurology Unit, Department of Translational Medicine, S. Andrea Hospital, University of Piemonte Orientale, 13100 Vercelli, Italy
3. Department of Health Sciences, University of Eastern Piedmont, 28100 Novara, Italy
4. Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
5. Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, 28100 Novara, Italy