[1] Hosp Univ Salamanca, Serv Hematol, Salamanca, Spain
[2] Univ Salamanca, Estadist, E-37008 Salamanca, Spain
[3] Hosp Univ Salamanca, Ctr Invest Canc USAL CSIC, Salamanca, Spain
[4] Hosp Univ Morales Meseguer, Serv Hematol & Oncol, Murcia, Spain
[5] Hosp Univ Virgen del Rocio, Serv Hematol, Seville, Spain
[6] Hosp Univ La Fe, Serv Hematol, Valencia, Spain
[7] Hosp Univ Vall dHebron, Serv Hematol, Barcelona, Spain