| IQAS | internal quality assurance system |
|---|---|
| IRE | internal rotation in extension; iron-responsive element; isolated rabbit eye |
| IRF | idiopathic retroperitoneal fibrosis; impulse response function; interferon regulatory factor; intern... |
| IRS | immunoreactive secretion; infrared spectrophotometry; insulin receptor species; insulin receptor sub... |
| ISH | icteric serum hepatitis; in situ hybridization; internal self helper; International Society of Hemat... |