Prognostic and safety analysis of capecitabine monotherapy versus CapeOx (capecitabine plus oxaliplatin) in elderly patients with high-risk stage II and stage III MRD-negative colorectal cancer - Zhai, Jiawei; Tan, Rongjian; Ou, Wenting; Quan, Zhenhao; Sun, Lijun; Huang, Xianjin; Wu, Jiayuan; Zhou, Caijin (Journal of Gastrointestinal Oncology; Vol 16, No 5 (October 31, 2025): Journal of Gastrointestinal Oncology, 2025)