| AERP | antegrade effective refractory period; atrial effective refractory period |
|---|---|
| LP | labile peptide; labile protein; laboratory procedure; lactic peroxidase; lamina propria; laryngophar... |
| EUA | Examination Under Anesthesia |
| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |
| ANA | acetylneuraminic acid; American Narcolepsy Association; American Neurological Association; American ... |