[1] Univ Modena, Dept Med Sci, Sect Hematol, I-41100 Modena, Italy
[2] Univ Modena, Dept Pathol, I-41100 Modena, Italy
[3] Univ Perugia, Dept Clin & Expt Med, Clin Hematol & Immunol, I-06100 Perugia, Italy
[4] Christchurch Sch Med, Dept Pathol, Cytogenet & Mol Oncol Unit, Christchurch, New Zealand
[5] PathoGenesis Corp, Seattle, WA USA