ERBB2 and breast cancer: Table 3 indicates the MMSE and TBPM scores of breast cancer patients in the HER2+ group after chemotherapy was raised (HER2−: 26.43 ± 1.65 vs. 4.62 ± 0.83; HER2+: 26.89 ± 1.60 vs.4.86 ± 0.98, p < 0.05).