POST-TRANSPLANT DLI: Patients with mixed chimerism on day 56 and no evidence of graft-vs-host disease (GVHD) undergo DLI over 30 minutes on day 65 and may receive up to 3 additional infusions in the absence of GVHD and disease progression or persistence. Patients who have not achieved mixed chimerism at day 56 undergo DLI if complete response is not obtained after a 2 month monitoring period.