| Abbreviation | Definition |
|---|---|
| REC | Reforming Emergency Care |
| REC | renal epithelial cell |
| REC | research ethics committee |
| REC | respiratory epithelial cell |
| REF | regional ejection fraction |
| REF | renal erythropoietic factor (erythropoeitin) |
| REF | restriction endonuclease fingerprinting |
| REF | restriction endonuclease fragments |
| RES | Race Equality Scheme |
| RES | radionuclide esophageal scintigraphy |
| RES | reduced emissions scenario (!) |
| RES | regional economic strategy (!) |
| RES | Reproducibility Echocardiography Study |
| RES | research |
| RES | resident |
| RES | restriction endonuclease |
| RESG | Race Equality Steering Group |
| RFA | radiofrequency ablation |
| RFA | reasons for assessment |
| RFA | restriction fragment analysis |