[1] IRCCS San Raffaele Sci Inst, Hematol & Bone Marrow Transplantat Unit, Milan, Italy
[2] Univ Vita Salute San Raffaele, Milan, Italy
[3] Univ Milano Bicocca, Dept Med & Surg, PhD Program Publ Hlth, Milan, Italy
[4] Univ Bologna, IRCCS Azienda Osped Univ Bologna Policlin St Orso, Ist Ematol & Oncol Medica LeA Seragnoli, Alma Mater Studiorum, Bologna, Italy