| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
|---|---|
| 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... |
| AC/BC | air conduction/bone conduction [time ratio] |