Among them, there were luminal B (n = 127), basal-like (n = 98), luminal A (n = 231), HER2+ (n = 58) and normal-like tumor samples (n = 9), which showed the highest expression of SALL4 (p-value = 0.0013) in HER2-enriched tissue samples followed by luminal A, luminal B and basal-like subtypes (Figure 1B). The gene discussed is ERBB2; the disease is neoplasm.