Box-and-whisker plots presenting the distribution of NIC in the venous phase and nZeff in the arterial and venous phases in breast cancers of the luminal A type (n=23), luminal B (n=51), HER2-enriched (n=13), and basal-like (n=14) subtypes. One-way ANOVA with Tukey’s post-hoc/nonparametric Kruskal-Wallis H test was used. NIC, normalized iodine concentration; nZeff, normalized effective atomic number.