| ARC | accelerating rate calorimetry; acquired immunodeficiency syndrome-related complex; active renin conc... |
|---|---|
| ASFR | age-specific fertility rate |
| ASR | aldosterone secretion rate; antistreptolysin reaction |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| BASH | body acceleration synchronous with heart rate |