First-line therapies with maintenance regimens for driver gene-negative advanced non-small cell lung cancer (NSCLC): a systematic review and network meta-analysis of 61 randomized trials

Ye Zhao, Hai-Ming Feng, Yu-Kan Chen, Jin-Hui Tian, Xiao-Jun Liu, Jing Wang, Xiao-Rui Pang, Shu-Ping Li