1. Department of Immunology and Transplantation; Azienda Ospedaliera - IRCCS - Istituto di Ricerche Farmacologiche “Mario Negri”; Bergamo; Italy
2. Laboratory of Cell Therapy “G. Lanzani”; Papa Giovanni XXIII; Bergamo; Italy
3. Department of Hematology; Papa Giovanni XXIII; Bergamo; Italy