Predicting survival rates: the power of prognostic nomograms in distal cholangiocarcinoma - Hu, Jiangfeng; Shi, Yuping; Jin, Lihua; Yi, Suhong; Chen, Jinsuo; Wan, Dadong; Ye, Weixin; Chen, Jingnan; Zhang, Yajing; Jiang, Yang; Duan, Bensong; Dong, Yuwei (Frontiers in Oncology, 2025)