FIGURE 1.

(A) Mann–Whitney U‐test of sumFGFR/EGFR (F/E) regarding fibroblast growth factor receptor inhibitor (FGFRi) sensitivity in 47 colorectal cancer‐stem cell (CRC‐SC) spheroid lines. (B) Mann–Whitney U‐test of EGFR/sumFGFR (E/F) regarding FGFRi sensitivity in 47 CRC‐SC spheroid lines. Note that this is just to visualize high F/E samples more easily in a reciprocal plot. (C) Receiver operating characteristic (ROC) curve analysis of F/E regarding FGFRi sensitivity in 47 CRC‐SC spheroid lines. Horizontal bar shows the median. AUC, area under the ROC curve; CI, confidence interval; R, responsive; NR, nonresponsive