| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
|---|---|
| AVO | aortic valve opening; aortic valve orifice; atrioventricular opening |
| DASD | Direct Access Storage Device = RAM |
| ACCESS | Ambulatory Care Clinic Effectiveness Systems Study; automated cervical cell screening system |
| BSAM | basic sequential access method |