The extent of infiltration of TAMs also differed by breast cancer subtype (p<0.001 in all compartments, Chi-square test and one-way ANOVA test), being significantly lower in luminal A subtype than in luminal B, HER2+ and triple-negative subtypes (intratumoral, p = 0.008, p = 0.006, p<0.001; stromal, p = 0.005, p<0.001, p<0.001; total, p = 0.005, p<0.001, p<0.001, respectively, Turkey post hoc test; Fig 2). Here, ERBB2 is linked to breast cancer.