参考资料：

[1] FDA Approves KEYTRUDA® (pembrolizumab) for Treatment of Patients With High-Risk Early-Stage Triple-Negative Breast Cancer in Combination With Chemotherapy as Neoadjuvant Treatment, Then Continued as Single Agent as Adjuvant Treatment After Surgery. Retrieved July 27, 2021, from https://www.merck.com/news/fda-approves-keytruda-pembrolizumab-for-treatment-of-patients-with-high-risk-early-stage-triple-negative-breast-cancer-in-combination-with-chemotherapy-as-neoadjuvant-treatment-then-continued/

[2] KEYTRUDA Is the First Anti-PD-1 Therapy in Combination With Chemotherapy to Show Statistically Significant OS for This Patient Population. Retrieved July 27, 2021, from https://www.merck.com/news/merck-announces-phase-3-keynote-355-trial-met-primary-endpoint-of-overall-survival-os-in-patients-with-metastatic-triple-negative-breast-cancer-whose-tumors-expressed-pd-l1-cps-%e2%89%a510/

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