ERBB2 and breast cancer: Moreover, in patients with HER2+ BC, high HLA-I expression correlates with an excellent disease-free survival (DFS), irrespective of a pCR [72]; consistently, the coexistence of high-TILs and high-HLA-I expression is associated with an excellent prognosis when compared with patients with high-TILs, but low-HLA-I expression [73].