Tolaney, S. M., Beeram, M., Beck, J. T., Conlin, A., Dees, E. C., Puhalla, S. L., Rexer, B. N., Burris, H. A., Jhaveri, K., Helsten, T., Becerra, C., Kalinsky, K., Moore, K. N., Manuel, A. M., Lithio, A., Price, G. L., Chapman, S. C., Litchfield, L. M., & Goetz, M. P. (2022). Abemaciclib in Combination With Endocrine Therapy for Patients With Hormone Receptor-Positive, HER2-Negative Metastatic Breast Cancer: A Phase 1b Study. Frontiers in Oncology, 11. https://doi.org/10.3389/fonc.2021.810023