Establishment of an inflammatory cytokine-based predictive model for the onset of prolonged postoperative ileus after radical gastrectomy: a prospective cohort study - Sui, Chao; Wang, BeiBei; Zhao, Yu; Guo, YunTian; Zhu, JinXin; Yu, Feng; Zhou, XiaoDong; Bu, XueFeng; Zhang, Jie (Frontiers in Immunology, 2025)