Retraction Note: Cellular immunotherapy using irradiated lung cancer cell vaccine co-expressing GM-CSF and IL-18 can induce significant antitumor effects - Hongwei Tian; Gang Shi; Guoyou Yang; Junfeng Zhang; Yiming Li; Tao Du; Jianzhou Wang; Fen Xu; Lin Cheng; Xiaomei Zhang; Lei Dai; Xiaolei Chen; et al. (BMC Cancer, 2023)