Development and validation of a prognostic model for patients with cT1-4N1-3M1 esophageal squamous cell carcinoma: based on the SEER database and the Chinese cohort study - Wang, Xiao-Mei; Liu, Can-Tong; Huang, Jia-Tao; Zhang, Zhi-Han; Xu, Yi-Wei; Wu, Fang-Cai; Peng, Yu-Hui (Frontiers in Oncology, 2025)