Lindström, L. ., Yau, C. ., Czene, K. ., Thompson, C. ., Hoadley, K. ., Veer, L. V., … Trialists, G. S. (2018). Intratumor Heterogeneity of the Estrogen Receptor and the Long-term Risk of Fatal Breast Cancer. Journal of the National Cancer Institute. https://doi.org/10.1093/jnci/djx270 (Original work published 2018)