Lopetegui-Lia, N., Gokun, Y., Davenport, A. P., Roy, A. M., Shah, M., Burke, E., Andraos, T. Y., Agnese, D. M., LeFebvre, H. M., Slover, B., Gatti-Mays, M. E., Stover, D. G., Myers, S. (2026). Chemotherapy use among women < 50 years with node-negative early-stage hormone receptor–positive breast cancer with intermediate OncotypeDX 21-gene recurrence score: A National Cancer Database analysis.. Journal of Clinical Oncology. https://doi.org/10.1200/jco.2026.44.16_suppl.e12546