Adjuvant Endocrine Therapy in Premenopausal Breast Cancer: 12-Year Results From SOFT

- Francis, Prudence A.; Fleming, Gini F.; Burstein, Harold J.; Davidson, Nancy E.; Geyer, Charles E.; Walley, Barbara A.; Ingle, James N.; Coleman, Robert E.; Müller, Bettina; Le Du, Fanny; Loibl, Sibylle; Winer, Eric P.; Láng, István; Ruepp, Barbara; Loi, S; Colleoni, M; Coates, AS; Gelber, RD; Goldhirsch, A; Regan, MM; SOFT Investigators and the International Breast Cancer Study Group (a division of ETOP IBCSG Partners Foundation),; Ciruelos, Eva M.; Bonnefoi, Hervé R.; Bellet, Meritxell; Bernardo, Antonio; Climent, Miguel A.; Martino, Silvana; Bermejo, Begoña