TY - JOUR AU - Im, S A; Lu, Y-S; Bardia, A B TI - Overall Survival with Ribociclib plus Endocrine Therapy in Breast Cancer JO - N Engl J Med VL - 381 PY - 2019 DO - 10.1056/NEJMoa1903765 L3 - PubMed-ID: 31166679 SP - 307 EP - 316 ER -