33.
Smith AJ, Phipps WR, Arikawa AY, O’Dougherty M, Kaufman B, Thomas W, et al. Effects of aerobic exercise on premenopausal sex hormone levels: results of the WISER study, a randomized clinical trial in healthy, sedentary, eumenorrheic women. Cancer Epidemiol Biomarkers Prev. 2011;20(6):1098–1106; doi: 10.1158/1055-9965.epi-10-1219.