1. Department of Neurology, Eastern Piedmont University, “Maggiore della Carità” University Hospital, Novara, Italy,
2. ALS Center, Department of Neurology, “Maggiore della Carità” University Hospital, Novara, Italy,
3. Department of Nuclear Medicine, “Maggiore della Carità” University Hospital, Novara, Italy,
4. Department of Radiology, “Maggiore della Carità” University Hospital, Novara, Italy,
5. Interdisciplinary Research Center of Autoimmune Disease (IRCAD), Eastern Piedmont University, Novara, Italy