Efficacy, safety, and biomarker analysis of Camrelizumab in Previously Treated Recurrent or Metastatic Nasopharyngeal Carcinoma (CAPTAIN study) =============================================================================================================================================== * Yunpeng Yang * Ting Zhou * Xiaozhong Chen * Jingao Li * Jianji Pan * Xiaohui He * Lizhu Lin * Ying-rui Shi * Weineng Feng * Jianping Xiong * Kunyu Yang * Qitao Yu * Qunling Zhang * Desheng Hu * Yan Sun * Guangyuan Hu * Ping Li * Liangfang Shen * Qin Lin * Ben Zhang * Xiao Qu * Jianjun Zou * Li Zhang * Wenfeng Fang * Yuanyuan Zhao