| Abbreviations | Meaning |
 | MNGIE | Myo-, Neuro-, Gastrointestinal Encephalopathy |
 | GE | Gastroenterology |
 | SBE | Small Bowel Enteroscopy |
 | GPC | Gastric Parietal Cell |
 | GT | Gastrostomy |
 | PEG | Patient Evaluation Grid; Percutaneous Endoscopic Gastrostomy; Pneumoencephalogram, Pneumoencephalography; Polyethylene Glycol |
 | SIMA | Small Intestinal Mucinous Antigen |
 | UG | Geometric Unsharpness; Urogastrone; Urogenital |
 | BIB | Bibliography; Biliointestinal Bypass; Brought In By |
 | GICA | Gastrointestinal Cancer |
 | GITS | Gastrointestinal Therapeutic System |
 | SB | Small Bowel |
 | SBTT | Small Bowel Transit Time |
 | FGDS | Fibrogastroduodenoscopy |
 | CRIP | Cysteine-rich Intestinal Protein |