| RV | random variable; rat virus; Rauscher virus; rectovaginal; reinforcement value; renal vein; residual ... |
|---|---|
| RVA | re-entrant ventricular arrhythmia; right ventricle activation; right vertebral artery |
| RVF | renal vascular failure; Rift Valley fever; right ventricular failure; right visual field |
| VR | right arm [electrode]; valve replacement; variable ratio; vascular resistance; venous reflux; venous... |
| A2C | apical two-chamber [view] |