The Impact of Hormone Receptor on the Clinical Outcomes of HER2-positive Breast Cancer: A Population-based Study

Int. J. Clin. Oncol.

This study revealed profound heterogeneity associated with HR status in the clinical outcomes of HER2-positive breast cancer regarding clinicopathological features, metastatic patterns, and prognosis. Prospective studies to optimize therapeutic strategies for HER2-positive subgroups are warranted.