| NRI | nerve root involvement; nerve root irritation; nonrespiratory infection |
|---|---|
| V1 TP V6 | ventral 1 to ventral 6 [chest leads in ECG] |
| VR | right arm [electrode]; valve replacement; variable ratio; vascular resistance; venous reflux; venous... |
| VRP | ventral root potential |
| VRR | ventral root reflex |