Updated results from MONALEESA-2, a phase III trial of first-line ribociclib plus letrozole versus placebo plus letrozole in hormone receptor-positive, HER2-negative advanced breast cancer. - Hortobagyi, G N; Stemmer, S M; Burris, H A; Yap, Y S; Sonke, G S; Paluch-Shimon, S; Campone, M; Petrakova, K; Blackwell, K L; Winer, E P (Annals of Oncology, 2018)