| GNBT | guanine nucleotide-binding protein, beta transducing |
|---|---|
| GOBAB | gamma-hydroxy-beta-amino-butyric acid |
| GRABS | group A beta-hemolytic streptococcal pharyngitis |
| GROB | growth-related protein beta |
| HBB | hemoglobin beta-chain; hospital blood bank; hydroxybenzyl benzimidazole |