Friedenreich, C. M., Neilson, H. K., Wang, Q., Stanczyk, F. Z., Yasui, Y., Duha, A., MacLaughlin, S., Kallal, C., Forbes, C. C., & Courneya, K. S. (2015). Effects of exercise dose on endogenous estrogens in postmenopausal women: A randomized trial. Endocrine-Related Cancer, 22(5), 863-876. https://doi.org/10.1530/ERC-15-0243