1. UAB-Medicine Department, Hospital Universitario Vall d’Hebron, VHIO, Barcelona, Spain;
2. Hospital Universitari i Politècnic La Fe, Valencia, Spain;
3. CIBERONC, Instituto Carlos III, Madrid, Spain;
4. Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland;
5. Hospital Clínico San Carlos, Madrid, Spain;
6. ICO-Hospital Universitari Germans Trias i Pujol, Jose Carreras Research Institute, Badalona, Spain;
7. Hospital 12 de Octubre, Madrid, Spain;
8. Hospital Clínico Universitario, Santiago de Compostela, Spain;
9. Hospital Joan XXIII, Tarragona, Spain;
10. Hospital General de Alicante, Alicante, Spain;
11. Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain;
12. Hospital Universitario de León, León, Spain;
13. Hospital Clinic, Barcelona, Spain;
14. Hospital Morales Meseguer, Murcia, Spain;
15. Hospital Puerta del Hierro, Madrid, Spain;
16. Hospital General de Albacete, Albacete, Spain;
17. Hospital Universitario Lucus Augusti, Lugo, Spain;
18. Hospital Universitario Virgen del Rocío, Sevilla, Spain;
19. Hospital Reina Sofía, Córdoba, Spain;
20. Medical University of Bialystok, Bialystok, Poland;
21. Hospital Regional Universitario Carlos Haya, Málaga, Spain;
22. Hospital General de Castellón, Castellón, Spain;
23. Hospital Universitari Son Espases, Palma, Spain