1. Department of Medicine, Division of Hematology and Medical Oncology, Massachusetts General Hospital Cancer Center
2. Massachusetts General Hospital, Harvard Medical School, Boston
3. Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston
4. Celgene Corporation, Summit, New Jersey
5. Agios Pharmaceuticals, Inc, Cambridge, Massachusetts
6. Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
7. Department of Clinical Hematology, Gustave Roussy, Villejuif, France