Outcome of 194 patients affected by WAS after HCT. (A) Probability of survival for all patients according to year of transplantation. (B-D) Five-year overall survival for patients who received a transplant up to 1999 and since 2000 and grouped by donor type (B), clinical status before transplantation, as measured by clinical score (C), or for 91 patients receiving URD-HCT and divided in 3 groups according to their age at transplantation (D). *P < .05. ***P < .005