| ACTH-LI | adrenocorticotropin-like immunoreactivity |
|---|---|
| ALLO | atypical Legionella-like organism |
| ALPPL | alkaline phosphatase-like, placental |
| ALS | acute lateral sclerosis; advanced life support; afferent loop syndrome; amyotrophic lateral sclerosi... |
| ALSD | Alzheimer-like senile dementia |