The effects of repeated DLI on the disease-free survival (DFS). (A) Patients had MRD conversion to negative within 3 months after DLI and had no DLI-associated chronic GVHD (n=15). (B) Patients had persistent MRD within 3 months after DLI, but had no DLI-associated chronic GVHD (n=19). (C) Patients had persistent MRD within 3 months after DLI and had DLI-associated chronic GVHD (n=9). The patients were divided into two groups according to the numbers of DLI that patients received.