Edman Kessler, L. et al. 2020. Efficacy and safety of cyclin dependent kinases 4/6 inhibitors in the treatment of metastatic breast cancer: a real-world experience. Acta Oncologica. 59, 11 (Aug. 2020), 1382–1387. DOI:https://doi.org/10.1080/0284186X.2020.1804613.