| ERP | early receptor potential; effective refractory period; elodoisin-related peptide; endoscopic retrogr... |
|---|---|
| GnRF | gonadotropin-releasing factor |
| GRA | gated radionuclide angiography; glucocorticoid-remedial aldosteronism; gonadotropin-releasing agent |
| GRP | gastrin-releasing peptide; glucose-regulated protein |
| GRPR | gastrin-releasing peptide receptor |