| GIS | gas in stomach; gastrointestinal series; geographic information system; guaranteed income supplement... |
|---|---|
| GIT | gastrointestinal tract |
| GITS | gastrointestinal therapeutic system |
| GITSG | gastrointestinal tumor study group |
| GITT | gastrointestinal transit time; glucose insulin tolerance test |
| UGIB | Upper gastrointestinal bleeding |
|---|---|
| UGIH | Upper gastrointestinal hemorrhage |
| GIT | gastrointestinal transit |