Correction to: Anti-PD-1 antibodies as a salvage therapy for patients with diffuse large B cell lymphoma who progressed/relapsed after CART19/20 therapy
Authors: Chunmeng Wang, Fengxia Shi, Yang Liu, Yajing Zhang, Liang Dong, Xiang Li, Chuan Tong, Yao Wang, Liping Su, Jing Nie, Weidong Han