One CD19 tumour model, Nalm6‐GFP‐Luc (derived from BALL), was incubated with four CAR‐T cells, and different parameters were analysed, as shown in Figure 3, where MND‐driven CAR‐T cells showed stronger anti‐tumour activity than MSCV CAR‐T cells and CMV CAR‐T cells (Figure 3A). The gene discussed is CD19; the disease is neoplasm.