Goodwin, P. J., Dowling, R. J. O., Ennis, M., Chen, B. E., Parulekar, W. R., Shepherd, L. E., Gelmon, K. A., Whelan, T. J., Ligibel, J. A., Hershman, D. L., Mayer, I. A., Hobday, T. J., Rastogi, P., Rabaglio-Poretti, M., Lemieux, J., Thompson, A. M., Rea, D. W., & Stambolic, V. (2021). Cancer Antigen 15-3/Mucin 1 Levels in CCTG MA.32: A Breast Cancer Randomized Trial of Metformin vs Placebo. JNCI Cancer Spectrum, 5(5). https://doi.org/10.1093/jncics/pkab066