{"groups":[{"description":"After a preparative regimen the patient will receive an infusion of one or two umbilical cord blood unit(s) (UBC). The UBC unit(s) will be thawed according to methods of Rubinstein et al. If two products are used, they will be administered sequentially on the same day 1-6 hours apart. Tacrolimus and mycophenolate mofetil (MMF) will be used for graft versus host disease (GVHD) prophylaxis. On day +30, +60, +100, +180, and +365 the chimeric status of patients will be interpreted by VNTR analysis. Immune reconstitution (Digeorge Panel) will also be checked at these time points.\n\numbilical cord blood (UCB): Infusion will occur after preparative regimen in one or two UCB unit(s). If two products are used, they will be administered sequentially on the same day 1-6 hours apart. Tacrolimus and mycophenolate mofetil (MMF) will be used for GVHD prophylaxis.","id":"FG000","title":"Transplant"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"34"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"11"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"23"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}