| GHAA | Group Health Association of America |
|---|---|
| GHC | group health cooperative |
| GISSI | Italian Study Group for the Prevention of Myocardial Infarction [Gruppo Italiano per lo Studio della... |
| GITSG | gastrointestinal tumor study group |
| GLP | glucagon-like peptide; glucose-L-phosphate; glycolipoprotein; good laboratory practice; group living... |