| C3 | third cervical nerve; third cervical vertebra; third component of complement |
|---|---|
| CIII | third cranial nerve |
| CSN | cardiac sympathetic nerve; carotid sinus nerve |
| NE | national emergency; necrotic enteritis; necrotizing enterocolitis; nephropathia epidemica; nerve end... |
| NRI | nerve root involvement; nerve root irritation; nonrespiratory infection |