[1] Mem Sloan Kettering Canc Ctr, Dept Med, Adult Bone Marrow Transplant Serv, 1275 York Ave, New York, NY 10021 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Biostat & Epidemiol, 1275 York Ave, New York, NY 10021 USA
[3] Mem Sloan Kettering Canc Ctr, Lab Med, 1275 York Ave, New York, NY 10021 USA
[4] Univ Autonoma Barcelona, Hosp Vall dHebron, Dept Hematol, E-08193 Barcelona, Spain
[5] Mem Sloan Kettering Canc Ctr, Dept Pediat, Bone Marrow Transplant Serv, 1275 York Ave, New York, NY 10021 USA