| RAI | radioactive iodine; radioactive isotope; resident assessment instrument; resting ankle index; right ... |
|---|---|
| RAITI | right atrial inversion time index |
| STIR | short tau inversion recovery |
| TI | inversion time; temporal integration; terminal ileum; thalassemia intermedia; therapeutic index; tho... |
| aPTT | activated Partial Thromboplastin Time |