Development and external validation of a prognostic nomogram for cancer-specific survival in elderly patients with early-stage gastric cancer - Cheng, Yu-Xi; Tao, Wei; Liu, Hao; Wu, Guo-Hao (Journal of Gastrointestinal Oncology; Vol 17, No 2 (April 30, 2026): Journal of Gastrointestinal Oncology, 2026)