1. Institut Català d’Oncologia-Hospital Germans Trias i Pujol, Josep Carreras Research Institute, Badalona, Universitat Autònoma de Barcelona, Barcelona, Spain;
2. Instituto de Investigación Biomédica de Salamanca (IBSAL), Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Centro de Investigación del Cáncer, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Universidad de Salamanca–Centro Superior de Investigaciones Científicas (CSIC), Hospital Universitario, Salamanca, Spain;
3. Department of Hematology, Hospital Universitario La Fe, Valencia, Spain;
4. Department of Hematology, Hospital Clínic, Institut D'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain;
5. Department of Hematology, Hospital Vall d’Hebron, Barcelona, Spain;
6. Department of Hematology, Hospital de Sant Pau, Barcelona, Spain;
7. Department of Hematology, Hospital Virgen de la Victoria, Málaga, Spain;
8. Department of Hematology, Hospital Central de Asturias, Oviedo, Spain;
9. Department of Hematology, Hospital Doce de Octubre, Madrid, Spain;
10. Department of Hematology, Hospital Gregorio Marañón, Madrid, Spain;
11. Department of Hematology, Hospital General, Alicante, Spain;
12. Department of Hematology, Hospital Clínico, Instituto de Investigación INCLIVA, Valencia, Spain;
13. Department of Hematology, Hospital Universitario, Donostia, Spain;
14. Institut Català d’Oncologia-Hospital Joan XXIII, Tarragona, Spain;
15. Department of Hematology, Hospital Universitario Virgen del Rocío, Sevilla, Spain;
16. Department of Hematology, Hospital Doctor Negrín, Las Palmas de Gran Canaria, Spain;
17. Department of Hematology, Hospital Marqués de Valdecilla, Santander, Spain;
18. Department of Hematology, Hospital Son Espases, Palma de Mallorca, Spain;
19. Department of Hematology, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain;
20. Institut Català d’Oncologia-Hospital Josep Trueta, Girona, Spain;
21. Department of Hematology, Hospital Morales Meseguer, Murcia, Spain;
22. Department of Hematology, Hospital Arnau de Vilanova, Valencia, Spain;
23. Department of Hematology, Hospital Universitario Insular, Las Palmas de Gran Canaria, Spain;
24. Department of Hematology, Hospital Reina Sofía, Córdoba, Spain;
25. Institut Català d’Oncologia-Hospital Duran i Reynals, L’Hospitalet de Llobregat, Spain;
26. Department of Hematology, Hospital Son Llàtzer, Palma de Mallorca, Spain;
27. Department of Hematology, Hospital Italiano, Buenos Aires, Argentina;
28. Department of Hematology, Hospital Clínico, Valladolid, Spain;
29. Department of Hematology, Hospital del Mar, Barcelona, Spain;
30. Department of Hematology, Hospital Universitari Mútua, Terrassa, Spain;
31. Department of Hematology, Hospital Arnau de Vilanova, Lleida, Spain;
32. Department of Hematology, Hospital San Pedro de Alcántara, Cáceres, Spain;
33. Department of Hematology, Hospital Miguel Servet, Zaragoza, Spain;
34. Department of Hematology, Hospital Lucus Augusti, Lugo, Spain;
35. Department of Hematology, Hospital HM Sanchinarro, Madrid, Spain;
36. Department of Hematology, Hospital Ramón y Cajal, Madrid, Spain;
37. Department of Hematology, Hospital Clínico, Santiago de Compostela, Spain;
38. Department of Hematology, Complejo Hospitalario, Ourense, Spain;
39. Department of Hematology, Hospital General, Castellón, Spain;
40. Department of Hematology, Hospital Universitario, Galdakao, Spain; and
41. Université de Paris, Institut Necker-Enfants Malades, Institut National de Recherche Médicale U1151, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Hôpital Necker Enfants-Malades, Paris, France