Original Article
Efficacy and safety of immune checkpoint inhibitors versus chemotherapy in the second-line treatment of advanced esophageal squamous cell carcinoma: a meta-analysis and systematic review
Kanghao Zhu, Hui Chen, Congcong Xu, Dong Chen, Zixian Jin, Sijia Ren, Pasan Witharana, Baofu Chen, Jianfei Shen