[1] Clin Puerta Hierro, Madrid, Spain
[2] FHA, Alcorcon, Spain
[3] Hosp Clin Barcelona, Barcelona, Spain
[4] Hosp Gregorio Maranon, Bone Marrow Transplant Unit, Madrid, Spain
[5] Hosp Valle De Hebron, Barcelona, Spain
[6] Hosp La Fe, E-46009 Valencia, Spain