1. Rare Diseases Center, General Medicine Unit Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
2. Università degli Studi di Milano Milan Italy
3. Division of Pathology Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
4. Department of Pathophysiology and Transplantation Università degli Studi di Milano Milan Italy
5. Department of Clinical Sciences and Community Health Università degli Studi di Milano Milan Italy
6. Regional Referral Centre for Lysosomal Storage Diseases, Division of Internal Medicine and Metabolism University Hospital of Baggiovara, AOU of Modena Modena Italy
7. Microcythemia Center Hematology with Transplant Unit, “A. Perrino” Hospital Brindisi Italy