| PORP | partial ossicular replacement prosthesis |
|---|---|
| TORP | total ossicular replacement prosthesis |
| APR | abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; amebic... |
| ARR | aortic root replacement |
| AVR | accelerated ventricular rhythm; antiviral regulator; aortic valve replacement |