| DRF | Daily Rating Form; daily replacement factor; Deafness Research Foundation; dose reduction factor |
|---|---|
| EDF | eosinophil differentiation factor; erythroid differentiation factor; extradural fluid |
| EIF | erythrocyte initiation factor; eukaryotic initiation factor |
| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
| GF | gastric fistula; gastric fluid; germ-free; glass factor; glomerular filtration; gluten-free; grandfa... |