Corrigendum: Piperlongumine, a Novel TrxR1 Inhibitor, Induces Apoptosis in Hepatocellular Carcinoma Cells by ROS-Mediated ER Stress - Qianqian Zhang; Weiqian Chen; Xiuling Lv; Qiaoyou Weng; Minjiang Chen; Ri Cui; Guang Liang; Jiansong Ji (Frontiers Media S.A., 2022)