Benefit of systemic therapy in MINDACT patients with small, ER-positive, HER2-negative breast cancers.

Hilbers FS, Poncet C, Tryfonidis K, Viale G, Delaloge S, Pierga JY, Brain EGC, Rubio IT, Thompson AM, Rutgers EJT, Piccart MJ, van 't Veer LJ, Cardoso F