[1] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Hematol Unit, Via Francesco Sforza 35, I-20122 Milan, Italy
[2] Univ Milan, Milan, Italy
[3] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Gen Med, C Gen Med Immunol & Allergol, Milan, Italy
[4] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Med Sci & Community, Endocrinol & Diabetol Units, Milan, Italy
[5] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Physiopathol & Transplantat, Dermatol Unit, Milan, Italy
[6] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Div Pathol, Dept Pathophys & Transplantat, Milan, Italy
[7] IRCCS Regina Elena, Biostat Unit, Rome, Italy