Complications of<unk>  include acute and chronic graft-versus-host disease and bone marrow aplasia, resulting in immunosuppression and susceptibility to opportunistic infections.
Donor lymphocyte infusion
Autologous immune enhancement therapy
Thymus transplantation
Spleen transplantation
Syngeneic stem cell transplantation
ABO-incompatible transplantation
Autosplenectomy
Stem-cell therapy