| GFS | global focal sclerosis; guafenesin |
|---|---|
| GIR | global improvement rating |
| GSI | global severity index |
| GUSTO | Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Coronary Arteries ... |
| TGA | taurocholate gelatin agar; thyroglobulin activity; total glycoalkaloids; total gonadotropin activity... |