1. Immunology and Allergy Unit, S. Maria degli Angeli Hospital , Pordenone , Italy
2. Institute of Clinical Pathology, Santa Maria della Misericordia University Hospital , Udine , Italy
3. Neurology Unit , Santa Maria della Misericordia University Hospital , Udine , Italy
4. Autoimmunity Laboratory, IRCCS Ospedale Policlinico San Martino , Genova , Italy
5. Autoimmunity Laboratory, Department of internal Medicine and Specialties (DiMI) , University of Genova , Genova , Italy