To elucidate the respective contribution of these factors in predicting chemotherapy response, we analyzed the distribution of age, T stage (from TNM classification), tumor grade, TP53 status, staining for ESR1, KRT5/6 or 17, and ERBB2 RNA expression among the 80 patients (Figure 1A; Tables 1 and S1). The gene discussed is KRT5; the disease is neoplasm.