1. Servizio di Immunoematologia e Medicina Trasfusionale ASST Grande Ospedale Metropolitano Niguarda Milan Italy
2. Italian Bone Marrow Donor Registry E. O. Ospedali Galliera Genoa Italy
3. Department of Oncology and Hemato‐Oncology Università degli Studi di Milano Milan Italy
4. Chemical‐Clinical and Microbiological Analyses ASST Grande Ospedale Metropolitano Niguarda Milan Italy
5. Laboratory of Immunogenetics Santa Maria della Misericordia University Hospital Udine Italy
6. Postgraduate School of Clinical Pharmacology and Toxicology Università degli Studi di Milano Milan Italy
7. Department of Infectious Diseases Unit ASST Grande Ospedale Metropolitano Niguarda Milan Italy