WT1 and Global developmental delay: Developmental delays in DMD progenitors were further quantified via Wilcoxon tests, showing highly significant differences (DMD1: p < 0.001, 95% CI [−0.069, −0.053]; DMD2: p < 0.001, 95% CI [−0.079, −0.053]) compared with the WT1, while DMD3 showed no significant differences (p = 0.60) (Supplementary Figure S4 and Supplementary Table S5).