| Abbreviations | Meaning |
 | GCLO | Gastric Campylobacter-like Organism |
 | TEF | Thoraco-epigastric Flap |
 | EOG | Electro-oculogram, Electro-oculography; Electro-olfactogram, Electro-olfactography; Eosinophilic Gastroenteritis; Ethylene Oxide Gas |
 | GTB | Gastrointestinal Tract Bleeding |
 | GE | Gastroenterostomy |
 | SIS | Small Intestinal Submucosa |
 | IVR | Intestinal Vascular Resistance |
 | UGIS | Upper Gastrointestinal Series |
 | GF | Gastric Fistula |
 | GO | Gastro-[o]esophageal; Geroderma Osteodysplastica; Glutamic Oxylacetic [acid]; Gonorrhea; Glucose Oxidase |
 | IBDLIST | Inflammatory Bowel Disease List [database] |
 | ECTA | Esophageal Gastric Tube Airway; Everyman's Contingency Table Analysis |
 | NGR | Narrow Gauze Roll; Nasogastric Replacement |
 | EGDS | Esophagogastric Devascularization With Splenectomy |
 | GD | Gastroparesis Diabeticorum |