| AIOS | acute illness observation scale |
|---|---|
| APACHE | Acute Physiology and Chronic Health Evaluation [severity-of-illness index] |
| ARI | acute respiratory illness; airway reactivity index; anxiety reaction, intense |
| BIS | bone cement implantation syndrome; Brain Information Service; building illness syndrome |
| CIPF | classic interstitial pneumonitis-fibrosis; clinical illness promoting factor |