[1] Leipzig Univ Hosp, Med Clin & Policlin 1, Hematol & Cellular Therapy, Johannisallee 32 A, D-04103 Leipzig, Germany
[2] European Myelodysplast Syndromes Cooperat Grp EMS, Leipzig, Germany
[3] Hop St Louis, AP HP, Paris, France
[4] Univ Paris 07, Paris, France
[5] Marien Hosp, Klin Onkol Hamatol & Palliat Med, Dusseldorf, Germany
[6] Univ Florence, Azienda Osped Univ AOU Careggi, Florence, Italy
[7] Vrije Univ Amsterdam Med Ctr, Canc Ctr Amsterdam, Dept Haematol, Amsterdam, Netherlands
[8] Leeds Teaching Hosp, St Jamess Inst Oncol, Leeds, W Yorkshire, England
[9] Radboud Univ Nijmegen, Med Ctr, Nijmegen Ctr Mol Life Sci, Dept Tumor Immunol, Nijmegen, Netherlands
[10] Univ Texas MD Anderson Canc Ctr, Dept Leukemia, Houston, TX 77030 USA
[11] Karolinska Inst, Dept Med, Div Haematol, Stockholm, Sweden
[12] Univ Klin Dusseldorf, Dept Haematol Oncol & Clin Immunol, Dusseldorf, Germany
[13] Med Univ Innsbruck, Dept Internal Med Hematol & Oncol 5, Innsbruck, Austria
[14] Univ Pavia, Policlin San Matteo, Fdn Ist Ricovero & Cura Carattere Sci IRCCS, Dept Haematol Oncol, Pavia, Italy
[15] Cleveland Clin, Taussig Canc Inst, Leukemia Program, Cleveland, OH 44106 USA
[16] Dana Farber Canc Inst, Boston, MA 02115 USA