[1] Hosp Clin, Dept Hematol, Valencia, Spain
[2] Hosp Clin Barcelona, Barcelona, Spain
[3] Hosp Santa Creu & Sant Pau, E-08025 Barcelona, Spain
[4] Hosp Princesa, Madrid, Spain
[5] Hosp Gen Valle Hebron, Barcelona, Spain
[6] Hosp La Paz, Madrid, Spain
[7] Hosp Son Dureta, Mallorca, Spain
[8] Gen Hosp, Murcia, Spain
[9] Hosp Gen Carlos Haya, Malaga, Spain