[1] Univ Cagliari, AOU Cagliari, Univ Hosp San Giovanni di Dio, Div Pathol,Dept Med Sci, Cagliari, Italy
[2] Univ Perugia, Inst Haematol, Perugia, Italy
[3] Univ Perugia, Ctr Haematooncol Res CREO, Perugia, Italy
[4] Hosp Perugia, Perugia, Italy
[5] Temple Univ, Philadelphia, PA 19122 USA
[6] Univ Perugia, Hosp Santa Maria, Pathol Anat, Terni, Italy