| AERP | antegrade effective refractory period; atrial effective refractory period |
|---|---|
| AERPAP | antegrade effective refractory period accessory pathway |
| APG | acid-precipitated globulin; ambulatory patient group; animal pituitary gonadotropin; antegrade pyelo... |
| CUG | cystidine, uridine, and guanidine; cystourethrogram, cystourethrography |
| MCU | malaria control unit; maximum care unit; micturating cystourethrography; motor cortex unit |