ICI plus chemotherapy prolonged survival over ICI alone in patients with previously treated advanced NSCLC

Shiqi Mao, Fei Zhou, Yiwei Liu, Shuo Yang, Bin Chen, Jian Xu, Fengying Wu, Xuefei Li, Chao Zhao, Wanying Wang, Qian Liu, Xiaofei Yu, Keyi Jia, Chuchu Shao, Caicun Zhou, Guanghui Gao, Shengxiang Ren