1. Hematology Department, Hospital Clínic, Institut d'investigacions biomèdiques August Pi i Sunyer, Barcelona, Spain;
2. Hematology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain;
3. Hematology Department, Institut Català D'Oncologia-Hospital Germans Trias i Pujol, Badalona, Spain;
4. Hematology Department, Hospital Clínico, Valencia, Spain;
5. Hematology Department, Hospital Duran i Reynals, L’Hospitalet de Llobregat, Spain;
6. Hematology Department, Hospital Joan XXIII, Tarragona, Spain;
7. Hematology Department, Hospital Josep Trueta, Girona, Spain;
8. Hematology Department, Hospital Virgen de la Victoria, Málaga, Spain;
9. Hematology Department, Hospital Vall d’Hebron, Barcelona, Spain;
10. Hematology Department, Hospital de Son Llàtzer, Palma de Mallorca, Spain;
11. Hematology Department, Hospital del Mar, Barcelona, Spain;
12. Hematology Department, Hospital Mútua de Terrassa, Terrassa, Spain; and
13. Hematology Department, Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain