The tumor‐initiating cell frequency in VEGFA‐exposed cells was 1/2,018, compared with 1/21,607 in non‐VEGFA‐exposed cells and 1/20,313 in VEGFA‐exposed cells pre‐treated with siRNA to BMI1, as calculated by L‐CalcTM Limiting Dilution Software (Fig 3B). The gene discussed is BMI1; the disease is neoplasm.