The Ki‐67 expression rates in tumor tissues at 14 days postoperatively were 50.69%, 29.22%, 35.47%, 16.10%, 38.55%, and 25.94% in the control, IRE, PI injection, IRE + PI injection, PDA‐CV@PI oral, and IRE + PDA‐CV@PI oral groups, respectively (Figure 5F). The gene discussed is MKI67; the disease is neoplasm.