[1] IRCCS, Policlin S Matteo, Biotechnol Lab, Pavia, Italy
[2] IRCCS, Policlin S Matteo, Lab Organ Transplantat, Pavia, Italy
[3] IRCCS, Policlin S Matteo, Unit Internal Med 3, Pavia, Italy
[4] IRCCS, Policlin S Matteo, Immunohematol & Trasfus Serv, Pavia, Italy
[5] Univ Illinois, Coll Med, Ctr Canc, Hematol Oncol Sect,Dept Pathol, Chicago, IL USA
[6] IRCCS, Policlin S Matteo, Clin Epidemiol Unit, Pavia, Italy