Using body composition to predict treatment-related adverse events and disease-free survival in patients with gastrointestinal stromal tumors treated with imatinib: a retrospective cohort study - Gu, Tianhao; Li, Tengyun; Zhang, Jianan; Zhou, Qianzheng; Yang, Dinghua; Xu, Jun; Li, Qiong; Xu, Zekuan; Li, Fengyuan; Xu, Hao (Frontiers in Immunology, 2025)