Figure 4From: HER2 and ESR1 mRNA expression levels and response to neoadjuvant trastuzumab plus chemotherapy in patients with primary breast cancerSubpopulation treatment effect pattern plot (STEPP) analysis using the classical parameters human epidermal growth factor receptor 2 (HER2) silver in situ hybridization (SISH) copy number and hormone receptor immunohistochemistry. Shown are analysis for all tumors (A), hormone receptor-positive tumors (B) and hormone receptor negative tumors (C). In contrast to the data shown ins the classical parameters were not linked to pCR rate. pCR, pathological complete response; IHC, immunohistochemistry; HR, hormone receptor.Back to article page