Nivolumab plus chemotherapy versus placebo plus chemotherapy in patients with HER2-negative, untreated, unresectable advanced or recurrent gastric or gastro-oesophageal junction cancer (ATTRACTION-4): a randomised, multicentre, double-blind, placebo-controlled, phase 3 trial.

DOI:10.1016/S1470-2045(21)00692-6
作者：Yoon-Koo Kang,?Li-Tzong Chen,?Min-Hee Ryu,?Do-Youn Oh,?Sang Cheul Oh,?Hyun Cheol Chung,?Keun-Wook Lee,?Takeshi Omori,?Kohei Shitara,?Shinichi Sakuramoto,?Ik-Joo Chung,?Kensei Yamaguchi,?Ken Kato,?Sun
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