| UA | absorption unsharpness; ultra-audible; ultrasonic arteriography; umbilical artery; unauthorized abse... |
|---|---|
| MEDPAR | Medical Provider Analysis and Review; Medicare Provider Analysis and Review |
| MRA | magnetic resonance angiography; main renal artery; marrow repopulation activity; medical record anal... |
| ABC | absolute basophil count; absolute bone conduction; acalculous biliary colic; acid balance control; a... |
| ABCC | Atomic Bomb Casualty Commission |