| Abbreviations | Meaning |
 | TSIA | Total Small Intestine Allotransplantation |
| GIH | Gastrointestinal Hemorrhage; Growth-inhibiting Hormone |
| NBM | No Bowel Movement; Normal Bone Marrow; Normal Bowel Movement; Nothing By Mouth |
| BO | Bowels Opened |
| BCOC | Bowel Care Of Choice |
| GRD | Gastroesophageal Reflux Disease; Gender Role Definition |
| UGI | (see GI) Upper Gastrointestinal |
| SBS | Small Bowel Series |
| PGS | Postsurgical Gastroparesis Syndrome |
| GITS | Gastrointestinal Therapeutic System |
| GA | Gastric Analysis |
| CIBD | Chronic Inflammatory Bowel Disease |
| GF | Gastric Fistula |
| RDG | Retrograde Duodenogastroscopy |
| BS | Bowel Sound |
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