| ARS | acquiescence response scale; adult Reye's syndrome; alcohol-related seizures; alizarin red S; Americ... |
|---|---|
| ARSA | American Reye's Syndrome Association; arylsulfatase A |
| ARSC | arylsulfatase C; Associate of the Royal Society of Chemistry |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |