| AHT | aggregation half time; antihyaluronidase titer; augmented histamine test; autogenous hamster tumor |
|---|---|
| ATE | acute toxic encephalopathy; adipose tissue extract; autologous tumor extract |
| ATF | activating transcription factor; anterior talofibular [ligament]; ascites tumor fluid |
| ATLS | acute tumor lysis syndrome; advanced trauma life support |
| ATV | Abelson virus transformed; avian tumor virus |