| IET | intrauterine exchange transfusion |
|---|---|
| IHBT | incompatible hemolytic blood transfusion |
| ISBT | International Society for Blood Transfusion |
| IUT | intrauterine transfusion |
| IVT | index of vertical transmission; interventional video tomography; intrasound vibration test; intraven... |
| TTTS | Twin-twin transfusion syndrome |
|---|---|
| TTTS | twin-to-twin transfusion syndrome |