| RHCSA | Regional Hospitals Consultants' and Specialists' Association |
|---|---|
| RHJSC | Regional Hospital Junior Staff Committee |
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
| RLN | recurrent laryngeal nerve; regional lymph node; relaxin |
| RLNC | regional lymph node cell |