| ARD | absolute reaction of degeneration; acute radiation disease; acute respiratory disease; adult respira... |
|---|---|
| RC | an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; r... |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| ISIS | image selected in vivo spectroscopy; imaging science and information system; information system-imag... |
| OHA | Oral Hypoglycemic Agents |