| Abbreviations | Meaning |
 | ACG | American College Of Gastroenterology |
| NBS | Normal Bowel Sounds |
| GIF | Gastric Intrinsic Factor; Gonadotropin-inhibiting Factor; Graphic Interchange Format [imaging]; Growth Hormone-inhibiting Factor |
| GS | Gastric Shield |
| BS | Bowel Sound |
| SBFT | Small Bowel Follow-through |
| MMIHS | Megacystis-microcolon-intestinal Hypoperistalsis Syndrome |
| GPIMH | Guinea Pig Intestinal Mucosal Homogenate |
| FIFR | Fasting Intestinal Flow Rate |
| EOG | Electro-oculogram, Electro-oculography; Electro-olfactogram, Electro-olfactography; Eosinophilic Gastroenteritis; Ethylene Oxide Gas |
| GTB | Gastrointestinal Tract Bleeding |
| GASTROC | Gastrocnemius |
| PEG | Percutaneous Endoscopic Gastrostomy |
| BCOC | Bowel Care Of Choice |
| IBDQ | Inflammatory Bowel Disease Questionnaire |
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