| Abbreviations | Meaning |
 | TSIA | Total Small Intestine Allotransplantation |
| SI | Small Intestine |
| SID | Selective Intestinal Decontamination |
| NG | Nasogastric; Neisseria Gonorrhoeae; Neoplastic Growth; New Growth; Nitroglycerin; Nodose Ganglion; No Growth; Not Given |
| LGI | Large Glucagon Immunoreactivity; Low Gastrointestinal; Lower Gastrointestinal |
| LB | Large Bowel |
| BS | Bowel Sounds |
| FIPA | Familial Intestinal Polyatresia [syndrome] |
| SBR | Small Bowel Resection; Small Box Respirator; Spleen-to-body [weight] Ratio; Strict Bed Rest; Styrene-butadiene Rubber |
| URG | Urogastrone |
| GOR | Gastroesophageal Reflux |
| DGM | Duodenal Gastric Metaplasia |
| AII | Acute Intestinal Infection; Angiotensin II; Second Meiotic Anaphase |
| GU | Gastric Ulcer; Genitourinary; Glucose Uptake; Glycogenic Unit; Gonococcal Urethritis; Gravitational Ulcer; Guanethidine |
| EGCS | Early Gastric Carcinomas |
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