The timing of ovarian function suppression (OFS) with chemotherapy in premenopausal women with endocrine-responsive HER2-negative early breast cancer: a secondary analysis of TEXT and SOFT. (March 2017) - Regan, M.M.; Walley, B.A.; Francis, P.A.; Fleming, G.F.; Colleoni, M.; Gelber, R.D.; Coates, A.S.; Goldhirsch, A.; Pagani, O.