Noordhoek I, Treuner K, Putter H, Zhang Y, et al. Breast Cancer Index predicts extended endocrine benefit to individualize
selection of HR+ early stage breast cancer patients for 10 years of endocrine
therapy. Clin Cancer Res 2020 Oct 27. pii: 1078-0432.CCR-20-2737.
PMID: 33109739