Identification of prognostic signatures in remnant gastric cancer through an interpretable risk model based on machine learning: a multicenter cohort study oleh Zhouwei Zhan, Bijuan Chen, Hui Cheng, Shaohua Xu, Chunping Huang, Sijing Zhou, Haiting Chen, Xuanping Lin, Ruyu Lin, Wanting Huang, Xiaohuan Ma, Yu Fu, Zhipeng Chen, Hanchen Zheng, Songchang Shi, Zengqing Guo, Lihui Zhang