Medical Clinic and Policlinic 1, Hematology and Cellular Therapy, University Hospital Leipzig, Leipzig, Germany. Electronic address: uwe.platzbecker@medizin.uni-leipzig.de. Cancer Center IRCCS Humanitas Research Hospital, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy. MDS Unit, Hematology, University of Florence, AOUC, Florence, Italy. Department of Internal Medicine, Yale School of Medicine and Yale Cancer Center, Yale University, New Haven, CT, USA. Moffitt Cancer Center, Tampa, FL, USA. Monash University and Monash Health, Melbourne, VIC, Australia. Hospital Universitari Vall d'Hebron, Barcelona, Spain. Medical Department, Hematology, Charles University General Hospital, Prague, Czech Republic. Hôpital Haut-Lévêque, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France. Malignant Haematology and Stem Cell Transplantation, The Alfred Hospital, Alfred Health, Melbourne, VIC, Australia. Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan. Bristol Myers Squibb, Princeton, NJ, USA. Celgene International, Boudry, Switzerland. Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania; Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. IRCCS University Hospital of Bologna, "Seràgnoli" Institute of Hematology, Bologna, Italy. Département d'Hématologie Clinique, Université Cote d'Azur, CHU Nice, Nice, France. Service d'Hématologie Séniors, Hôpital Saint-Louis, Université Paris 7, Paris, France. Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX, USA.