| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
|---|---|
| API | alkaline protease inhibitor; Analytical Profile Index; arterial pressure index; atmospheric pressure... |
| art | artery, arterial; articulation; artificial |
| ASMC | arterial smooth muscle cell |
| BCAT | brachiocephalic arterial trunk |