EPO and hepatocellular carcinoma: Iwahori et al. first reported the generation of T cells which can secrete a bispecific T‐cell engager specific both for CD3 and the tumour‐associated antigen, erythropoietin‐producing hepatocellular carcinoma A2 (EphA2), for bystander T‐cell‐mediated in vitro cytolysis.105