| IFA | idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Fr... |
|---|---|
| IGD | idiopathic growth hormone deficiency; interglobal distance; isolated gonadotropin deficiency |
| IHA | idiopathic hyperaldosteronism; indirect hemagglutination; indirect hemagglutination antibody |
| IHES | idiopathic hypereosinophilic syndrome |
| IHHS | idiopathic hyperkinetic heart syndrome |