[1] Univ Florence, AOU Careggi, Dipartimento Med Sperimentale & Clin, Florence, Italy
[2] Celgene Corp, Summit, NJ USA
[3] Inst Portugues Oncol Francisco Gentil, Dept Hematol, Lisbon, Portugal
[4] Marien Hosp, Hematol, Dusseldorf, Germany
[5] Celgene Int, Hematol & Oncol, Boudry, Switzerland
[6] Univ Paris 07, Hop St Louis, Serv Hematol Sr, Paris, France