| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
|---|---|
| CER | capital expenditure review; ceramide; conditioned emotional response; control electrical rhythm; cor... |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| MLR | mean length response; middle latency response; mixed lymphocyte reaction |