MARLBOROUGH, Mass.--(BUSINESS WIRE)--Hologic, Inc. (Nasdaq: HOLX) and its subsidiary, Biotheranostics, Inc., today announced newly published study results revealing that use of the Breast Cancer Index® (BCI) test led to physicians changing their long-term anti-estrogen treatment recommendations for 40% of patients with early-stage hormone receptor-positive (HR+) breast cancer.1 The results, which suggest that many women may be over- or undertreated without the incorporation of BCI, reflect real-world data f ...