1. Department of Medicine Huddinge Center for Hematology and Regenerative Medicine Karolinska Institutet Stockholm Sweden
2. Department of Hematology Karolinska University Hospital Stockholm Sweden
3. Division of Clinical Genetics Department of Laboratory Medicine Lund University Lund Sweden
4. Division of Laboratory Medicine Department of Clinical Genetics and Pathology Lund Sweden
5. Department of Medical Oncology Dana–Farber Cancer Institute Boston Massachusetts USA
6. Broad Institute of Harvard and MIT Cambridge Massachusetts USA
7. Howard Hughes Medical Institute Boston Massachusetts USA
8. Department of Cell and Molecular Biology Karolinska Institutet Stockholm Sweden
9. MRC Molecular Haematology Unit MRC Weatherall Institute of Molecular Medicine University of Oxford Oxford UK