EFS and OS for ADA-SCID. (A) Five-year EFS by FDCT. (B) Five-year EFS for all transplant patients (including those with and without a preceding period of ERT) by donor type. HCT, Hematopoietic cell transplantation; MFD, Matched familial donor; URD/UCB, unit cord blood. See Figure 2A,C in the article by Cuvelier et al that begins on page 685.