| CIREN | Crash Injury Research and Engineering Network |
|---|---|
| CNR | cannabinoid receptor; Center for Nursing Research; contrast-to-noise ratio; Council of Nurse Researc... |
| CPRD | Committee on Prosthetics Research and Development |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CRAHCA | Center for Research in Ambulatory Health Care Administration |