| IA | ibotenic acid; immune adherence; immunoadsorbent; immunobiologic activity; impedance angle; indolami... |
|---|---|
| QRS-T | the angle between the QRS and T vectors in vectorcardiography [angle] |
| NVL | no visible lesion |
| VID | visible iris diameter |
| VIS | vaginal irrigation smear; venous insufficiency syndrome; vertebral irritation syndrome; visible; vis... |