| Abbreviations | Meaning |
 | IO | Intestinal Obstruction |
| NGR | Narrow Gauze Roll; Nasogastric Replacement |
| ECTA | Esophageal Gastric Tube Airway; Everyman's Contingency Table Analysis |
| GF | Gastric Fistula |
| GBS | Gastric Bypass Surgery |
| POLIP | Polyneuropathy-ophthalmoplegia-leukoencephalopathy- Intestinal Pseudoobstruction [syndrome] |
| GAS | Gastroenterology |
| PG | Nasopharyngeal Electrode Placement In Electroencephalography; Gastric Pressure; Plakoglobin; Plasminogen; Pogonion; Pregnancy, Pregnant; Pregnenolone |
| MSB | Master Of Science In Bacteriology; Mid-small Bowel; Most Significant Bit |
| UGIH | Upper Gastrointestinal Hemorrhage |
| FGDS | Fibrogastroduodenoscopy |
| TGEV | Transmissible Gastroenteritis Virus |
| GO | Gastro-[o]esophageal; Geroderma Osteodysplastica; Glutamic Oxylacetic [acid]; Gonorrhea; Glucose Oxidase |
| A | Tumor Limited To The Bowel [Dukes Classification] |
| TSIA | Total Small Intestine Allotransplantation; Triple Sugar Iron Agar |
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