MND-c.o.RAG1 LV correction (+LV) rescues in vitro T-cell development of HSPCs from RAG1-SCID patients (p1-p3). (A) Flow cytometry of week 8 ATOs. CD7⁺CD5⁺ and subsequent T-cell plots are gated on live CD45⁺CD14^–CD19^–CD56^– cells. (B) Absolute cell number per ATO (week 8) of live CD45⁺ and subpopulations, as indicated.