| AOSSM | American Orthopedic Society for Sports Medicine |
|---|---|
| ARRS | American Roentgen Ray Society |
| ARSC | arylsulfatase C; Associate of the Royal Society of Chemistry |
| ARSPH | Associate of the Royal Society for the Promotion of Health |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |