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Wang, Bi-Cheng; Zhang, Zhan-Jie; Fu, Chen; Wang, Chang (2019). Efficacy and safety of anti-PD-1/PD-L1 agents vs chemotherapy in patients with gastric or gastroesophageal junction cancer: a systematic review and meta-analysis. Medicine, 98(47), e18054. Wolters Kluwer Health 10.1097/MD.0000000000018054
