Fig. 1: p63 expression in iCCA and association with survival.

A p63 expression level in the p63-high group was significantly different from those in the p63-low and normal groups, while it was not significantly different between the p63-low and normal groups. P-value was calculated using a t-test. B Kaplan–Meier analysis comparing the survival of iCCA patients with low p63 expression to patients with high p63 expression using the mean value as the threshold. P-value was calculated using the log-rank test. C Representative IHC images of p63 protein expression in iCCA tissue samples.