主题词：Gastric Cancer Management and Outcomes; Gastrointestinal Tumor Research and Treatment; Metastasis and carcinoma case studies; Esophageal Cancer Research and Treatment; Helicobacter pylori-related gastroenterology studies; Esophageal and GI Pathology; Bariatric Surgery and Outcomes; Gastrointestinal disorders and treatments; Minimally Invasive Surgical Techniques; Enhanced Recovery After Surgery; Multiple and Secondary Primary Cancers; Nutrition and Health in Aging; Food Quality and Safety Studies; Colorectal Cancer Treatments and Studies; Colorectal Cancer Surgical Treatments; Inflammatory Biomarkers in Disease Prognosis; Cholangiocarcinoma and Gallbladder Cancer Studies; Intraperitoneal and Appendiceal Malignancies; Colorectal Cancer Screening and Detection; Neuroendocrine Tumor Research Advances; Genetic factors in colorectal cancer; Nutrition, Health and Food Behavior; Legal and Regulatory Analysis; Linguistic, Cultural, and Literary Studies; Military Technology and Strategies