Department of Gastric Surgery Fujian Medical University Union Hospital Fuzhou 350001 Fujian Province China;
Department of General Surgery Fujian Medical University Union Hospital Fuzhou 350001 Fujian Province China;
Key Laboratory of the Ministry of Education of Gastrointestinal Cancer Fujian Medical University Fuzhou 350001 Fujian Province China;
Fujian Key Laboratory of Tumor Microbiology Fujian Medical University Fuzhou 350001 Fujian Province China;
Proximal gastric cancer; Preoperative; Nomogram; Prediction; Prognosis;