In addition, higher baseline levels of stromal tumor-infiltrating lymphocytes (sTILs) (median, 35 vs 25%; P = 0.018) were found in patients with HER2-positive tumors who achieved RCB 0 + 1 (defined as responders) vs RCB 2 + 3 (defined as nonresponders), respectively [26]. Here, ERBB2 is linked to neoplasm.