Primary graft failure is a lethal complication that occurs after allogeneic stem cell transplantation（allo-SCT）and requires retransplantation. We retrospectively assessed 1,355 patients who underwent allo-SCT at our institute. Following allo-SCT, the cumulative incidence of subsequent neutrophil engraftment was calculated each day after day 5 among patients with white blood cell（WBC）count＜100 cells／μL on the respective day. | Kinetics of neutrophil engraftment in allogeneic stem cell transplantation
