1. Department of Hematology Complejo Asistencial de Avila Spain
2. Department of Hematology University Hospital of Salamanca (HUS/IBSAL), CIBERONC and Center for Cancer Research‐IBMCC (USAL‐CSIC) Salamanca Spain
3. Department of Hematology Complejo Asistencial Universitario de León León Spain
4. Department of Hematology Hospital de Laredo Laredo Spain
5. Department of Hematology Hospital Universitario Marqués de Valdecilla (IDIVAL), Universidad de Cantabria Santander Spain
6. Department of Hematology Hospital Virgen del Puerto Plasencia Spain
7. Department of Hematology Complejo Asistencial Universitario de Palencia Palencia Spain
8. Department of Hematology Complejo Asistencial de Soria Soria Spain
9. Department of Hematology Complejo Asistencial de Segovia Segovia Spain
10. Department of Hematology Complejo Asistencial Universitario de Burgos Burgos Spain
11. Department of Hematology Hospital El Bierzo, Ponferrada Spain
12. Department of Hematology Hospital Clínico Universitario de Valladolid Valladolid Spain
13. Department of Hematology Complejo Asistencial de Zamora Zamora Spain