| Abbreviations | Meaning |
 | PG | Nasopharyngeal Electrode Placement In Electroencephalography; Gastric Pressure; Plakoglobin; Plasminogen; Pogonion; Pregnancy, Pregnant; Pregnenolone |
| INT | International; Intestinal |
| SBO | Small Bowel Obstruction |
| IPSID | Immunoproliferative Small Intestinal Disease |
| UGIB | Upper Gastrointestinal Bleeding |
| MSB | Master Of Science In Bacteriology; Mid-small Bowel; Most Significant Bit |
| UG | Urogastrone |
| I-IEL | Intestinal Intraepithelial Lymphocyte |
| LB | Large Bowel |
| IG | Immature Granule; Immunoglobulin; Insulin And Glucose; Intergenic; Interstitial Glucose; Intragastric; Irritable Gut |
| LI | Large Intestine |
| GR | Gastric Resection; Great, Greater; Gross, Grossly; Group |
| GDA | Gastroduodenal Artery; General Daily Activity; Germine Diacetate; Graves Disease Autoantigen |
| GA | Gastric Analysis |
| GIST | Gastrointestinal Stromal Tumor |
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