Perioperative versus adjuvant S-1 plus oxaliplatin chemotherapy for stage II/III resectable gastric cancer (RESONANCE): a randomized, open-label, phase 3 trial oleh Xinxin Wang, Canrong Lu, Bo Wei, Shuo Li, Ziyu Li, Yingwei Xue, Yingjiang Ye, Zhongtao Zhang, Yihong Sun, Han Liang, Kai Li, Linghua Zhu, Zhichao Zheng, Yanbing Zhou, Yulong He, Fei Li, Xin Wang, Pin Liang, Hua Huang, Guoli Li, Xian Shen, Jiafu Ji, Yun Tang, Zekuan Xu, Lin Chen, on behalf of RESONANCE study group