Case Report
Homozygous deletion of the HLA-B gene as an acquired-resistance mechanism to nivolumab in a patient with lung adenocarcinoma: a case report
He Zhang, Weiwei Dong, Huixia Zhao, Zhiyan Zeng, Fengyun Zhang, Yanyan Hu, Qiuwen Li, Jing Chen, Erhong Meng, Wenhua Xiao