| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
|---|---|
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| GH-RIF | growth hormone-release inhibiting factor |
| GRIF | growth hormone release-inhibiting factor |
| MRIF | melanocyte[-stimulating hormone] release-inhibiting factor |