| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
|---|---|
| APB | abductor pollicis brevis; atrial premature beat |
| APC | acetylsalicylic acid, phenacetin, and caffeine; activated protein C; adenoidal-pharyngeal-conjunctiv... |
| APD | action potential duration; acute polycystic disease; advanced physical diagnosis; anteroposterior di... |
| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |