[1] Aristotle Univ Thessaloniki, AHEPA Univ Hosp, Dept Internal Med 1, Hematol Unit, Thessaloniki, Greece
[2] Natl & Kapodistrian Univ Athens, Laikon Gen Hosp, Dept Hematol, Athens, Greece
[3] Evangelismos Gen Hosp, Hematol Lymphomas Dept, Bone Marrow Transplant Unit, Athens, Greece
[4] G Papanicolaou Hosp, Dept Hematol, Bone Marrow Transplantat Unit, Thessaloniki, Greece
[5] Gen Hosp Patras Aghios Andreas, Dept Hematol, Patras, Greece
[6] Univ Gen Hosp, Dept Internal Med 2, Athens, Greece
[7] Univ Gen Hosp, Res Unit, Hematol Unit, Athens, Greece
[8] Democritus Univ Thrace, Univ Hosp Alexandroupolis, Dept Hematol, Alexandroupolis, Greece
[9] Univ Hosp Larissa, Dept Hematol, Larisa, Greece
[10] Aristotle Univ Thessaloniki, Hippokrat Hosp, Dept Med 4, Thessaloniki, Greece
[11] Univ Crete, Univ Hosp Heraklion, Sch Med, Dept Hematol, Iraklion, Greece