| BORR | blood oxygen release rate |
|---|---|
| CPIR | cephalic-phase insulin release |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CRT | cadaveric renal transplant; cardiac resuscitation team; cathode-ray tube; certified; Certified Recor... |
| CTR | cardiothoracic ratio; carpal tunnel release; central tumor registry |