 - Donor lymphocyte infusions DLIs: Patients with residual disease 6 months post-transplantation who are off immunosuppression for 30 days with no evidence of GVHD may receive DLIs. DLIs are administered 12 weeks apart in the presence of persistent disease, absence of severe grade 3-4 GVHD, and absence of persistent GVHD after the first DLI. 