| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
|---|---|
| RVF | renal vascular failure; Rift Valley fever; right ventricular failure; right visual field |
| SEF | somatically-evoked field; staphylococcal enterotoxin F |
| SFFF | sedimentation field flow fractionation |
| TEFS | transmural electrical field stimulation |