[1] Fdn IRCCS Policlin S Matteo, Immunohaematol & Transfus Serv, Pavia, Italy
[2] Fdn IRCCS Policlin S Matteo, Dept Resp Dis, Pavia, Italy
[3] Fdn IRCCS Policlin S Matteo, Dept Oncohaematol, Bone Marrow Transplant Unit, Pavia, Italy
[4] Fdn IRCCS Policlin S Matteo, Sci Direct, Clin Epidemiol & Biostat Unit, Pavia, Italy
[5] Univ Pavia, Dept Mol Med, Via Palestro 3, I-27100 Pavia, Italy