Regarding the associations of HER family receptor mRNA expression with breast cancer subtypes, high EGFR mRNA expression was associated with triple-negative breast cancer (TNBC) (p < 0.001), while high HER2 mRNA expression with luminal-HER2 and HER2-enriched subtypes (both, p < 0.001). The gene discussed is ERBB2; the disease is breast carcinoma.