原文文献：

Oswald LB, Arredondo B, Kadono M, Martinez-Tyson D, Meade CD, Penedo F, Antoni MH, Soliman H, Costa RLB, Jim HSL. A mixed-methods study of cyclin-dependent kinase 4 and 6 inhibitor symptom burden and quality of life among metastatic breast cancer patients and providers. Cancer Med. 2021 Jul;10(14):4823-4831. doi: 10.1002/cam4.4055. Epub 2021 Jun 24. PMID: 34165265; PMCID: PMC8290228.