[1] Univ Verona, Osped Policlin GB Rossi, Dipartimento Sci Morfol Biomed, Sez Chim Clin, I-37134 Verona, Italy
[2] Univ Parma, Azienda Osped, Serv Immunoematol & Trasfus, I-43100 Parma, Italy
[3] Univ Verona, Dipartimento Sci Biomed & Chirurg, Sez Endocrinol & Malattie Metab, I-37134 Verona, Italy
[4] Westmead Hosp, Dept Haematol, Inst Clin Pathol & Med Res, Westmead, NSW 2145, Australia