1. 1Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
2. 2Department of Pathology, Institut Universitaire du Cancer, CHU de Toulouse, Toulouse, France
3. 3Centro de Investigación Biomédica en Red de Cáncer, Madrid, Spain
4. 4Hospital Clínic of Barcelona, Barcelona, Spain
5. 5Biología Molecular e Histocompatibilidad, Instituto de Investigación Biomédica de Salamanca-Hospital Universitario, Centro de Investigación del Cáncer-Instituto de Biología Molecular y Celular del Cáncer, University of Salamanca-Spanish National Research Council, Salamanca, Spain
6. 6Servicio de Hematología y Hemoterapia, Hospital Universitario Central de Asturias, Oviedo, Spain
7. 7Servicio de Hematología, Hospital Clínico Universitario, Instituto de Investigación Sanitaria (INCLIVA), Universidad de Valencia, Valencia, Spain
8. 8European Molecular Biology Laboratory, Heidelberg, Germany
9. 9The Broad Institute of MIT and Harvard, Cambridge, MA
10. 10The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
11. 11Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
12. 12Harvard Medical School, Boston, MA
13. 13Department of Medicine, Brigham and Women's Hospital, Boston, MA
14. 14Center for Cancer Research, Massachusetts General Hospital, Boston, MA
15. 15Department of Pathology, Massachusetts General Hospital, Boston, MA
16. 16Department of Medical Oncology and Hematology, University Hospital and University of Zürich, Zurich, Switzerland
17. 17Universitat de Barcelona, Barcelona, Spain
18. 18Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain