ADJUVANT ENDOCRINE THERAPY, ALONE OR IN COMBINATION WITH ZOLEDRONIC ACID (ZOL), IN PREMENOPAUSAL PATIENTS (PTS) WITH ENDOCRINE-RESPONSIVE EARLY BREAST CANCER (EBC): SUBGROUP ANALYSES OF ABCSG-12

Gnant, M, Mlineritsch, B, Stoeger, H, Luschin-Ebengreuth, G, Poestlberger, S, Steger, GG, Jakesz, R, Singer, CF, Eidtmann, H, Greil, R