A Real-World Data Retrospective Cohort Study of Low Estrogen Receptor-Positive Early Breast Cancer: Natural History and Treatment Outcomes.
Shahla BariDavid BoulwareJiannong LiLoretta LoftusAixa Soyano MullerZena JameelHung KhongBrian J CzernieckiRicardo L B CostaPublished in: Breast cancer (Dove Medical Press) (2022)
In our cohort, patients with BCs with ER expression levels <20% had poor clinical outcomes similar to those of patients with TNBC.