| APKD | adult-onset polycystic kidney disease |
|---|---|
| ARAL | adjustment reaction to adult life |
| ARD | absolute reaction of degeneration; acute radiation disease; acute respiratory disease; adult respira... |
| ARDS | acute respiratory distress syndrome; adult respiratory distress syndrome |
| ARS | acquiescence response scale; adult Reye's syndrome; alcohol-related seizures; alizarin red S; Americ... |