^a)HLA-A, -B, -C, -DR matching with DNA typing. ^b)With the exception of one haploidentical transplantation HSCT, conditioning was performed with total body irradiation, busulfan, fludarabine and ATG.

Abbreviations: ATG, anti-thymocyte globulin; BM, bone marrow; GVHD, graft-versus-host disease; HLA, human leukocyte antigen; PBSC, peripheral blood stem cell; SCD, sickle cell disease; TM, thalassemia major.