1. Department of Neurosciences University of Turin Turin Italy
2. Stem Cell Transplant Unit University Hospital A.O.U. “Città della Salute e della Scienza di Torino” Turin Italy
3. Department of Molecular Biotechnologies and Health Sciences University of Turin Turin Italy
4. SSD Myeloma Unit and Clinical Trial, University Haematology A.O.U. "Città della Salute e della Scienza di Torino" Turin Italy
5. Department of Neurology Ospedale Cardinal Massaia Asti Italy
6. Division of Hematology 2 A.O.U. "Città della Salute e della Scienza di Torino" Turin Italy
7. Section of Biostatistics, Department of Health Sciences University of Genoa Genoa Italy
8. Department of Neurology Ospedale San Giovanni Bosco Turin Italy