| Abbreviations | Meaning |
 | FIN | Fine Intestinal Needle |
| GA | Gastric Antrum |
| TSIA | Total Small Intestine Allotransplantation |
| SBO | Small Bowel Obstruction; Spina Bifida Occulta |
| GU | Gastric Ulcer; Genitourinary; Glucose Uptake; Glycogenic Unit; Gonococcal Urethritis; Gravitational Ulcer; Guanethidine |
| VIP | Vasoactive Intestinal Peptide |
| BS | Bowel Sound |
| GRD | Gastroesophageal Reflux Disease; Gender Role Definition |
| OGD | [o]esophago-gastro-duodenoscopy |
| PCI | Pneumatosis Cystoides Intestinales |
| OMGE | Organisation Mondiale De Gastro-Enterologie |
| IBDQ | Inflammatory Bowel Disease Questionnaire |
| MMIHS | Megacystis-microcolon-intestinal Hypoperistalsis Syndrome |
| GIH | Gastrointestinal Hormone |
| GEJ | Gastroesophageal Junction |
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