| IFA | idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Fr... |
|---|---|
| IHA | idiopathic hyperaldosteronism; indirect hemagglutination; indirect hemagglutination antibody |
| DID | dead of intercurrent disease; double immunodiffusion |
| DRID | double radial immunodiffusion; double radioisotope derivative |
| FID | flame ionization detector; free induction decay; fungal immunodiffusion |