2.4 GVHD prophylaxis
The prophylaxis for acute GVHD (aGVHD) was composed of cyclosporine, mycophenolate mofetil (MMF), and short-term methotrexate (MTX). The discontinuation time of MMF was different according to the transplantation type: (1) MMF was withdrawn when (White blood cells, WBCs ) engrafted in patients who received matched related transplantation (MRD) within 30 days post-HSCT; and (2) MMF was withdrawn on day 45 post-HSCT in patients who received mismatched related/haploidentical transplantation.