| DIF | diffuse interstitial fibrosis; direct immunofluorescence; dose increase factor |
|---|---|
| FCI | fixed-cell immunofluorescence; food chemical intolerance |
| GIFT | gamete intrafallopian transfer; granulocyte immunofluorescence test |
| IF | idiopathic fibroplasia; idiopathic flushing; immersion foot; immunofluorescence; indirect fluorescen... |
| IFA | idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Fr... |