| ASAC | acidified serum-acidified complement |
|---|---|
| ASS | acute serum sickness; acute spinal stenosis; anterior superior spine; argininosuccinate synthetase |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| AuS | Australia serum hepatitis |
| AuSH | Australia serum hepatitis |