1. Oncohematology Division, IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation; University of Milan; Milano Italy
2. Oncohematology Unit of the Elderly; IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation; Milano Italy
3. Department of Hematology-Oncology and BMT Unit, IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation, Department of Biomedical, Surgical, and Dental Sciences; University of Milan; Milano Italy
4. Epidemiology Unit, Department of Preventive Medicine; IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation; Milano Italy
5. Laboratory of Clinical Chemistry and Microbiology; IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation; Milano Italy
6. Hematopathology Service, Division of Pathology, Department of Pathophysiology and Transplantation, IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation; University of Milan; Milano Italy