| Xi | inactive X Chromosome |
|---|---|
| CAC/CIC | chronic active/inactive cirrhosis |
| IRA | immunoradioassay; immunoregulatory alpha-globulin; inactive renin activity |
| ILP | inadequate luteal phase; insufficiency of luteal phase; interstitial laser photocoagulation; interst... |
| SPIA | solid-phase immunoabsorption; solid-phase immunoassay |