| IDF | inverse document frequency |
|---|---|
| IRV | inferior radicular vein; inspiratory reserve volume; inverse ratio ventilation |
| GH-V | variant form of Growth Hormone |
| ABPA | actin-binding protein, autosomal form; allergic bronchopulmonary aspergillosis |
| ARF | acute renal failure; acute respiratory failure; acute rheumatic fever; Addiction Research Foundation... |