We subsequently evaluated the fraction of tumor cells that incorporated EdU in a 24 h pulse starting after 7 d of culture, meaning that EdU‐positive cells went through S‐phase of the cell cycle during that 24 h time period; the fraction of EdU‐positive cells was then normalized to the fraction of Ki67‐positive cells for each experimental (Figure 5D,E, Figure S6, Supporting Information). The gene discussed is MKI67; the disease is neoplasm.