| RES | Reticulo-Endothelial System |
|---|---|
| SI | System of International Units (Systeme International D'unites) |
| AAMRS | automated ambulatory medical record system |
| ABO | abortion; absent bed occupancy; American Board of Orthodontists; blood group system consisting of gr... |
| ACCESS | Ambulatory Care Clinic Effectiveness Systems Study; automated cervical cell screening system |