| IPS | idiopathic pain syndrome; idiopathic postprandial syndrome; inches per second; infundibular pulmonar... |
|---|---|
| ISI | infarct size index; initial slope index; injury severity index; Institute for Scientific Information... |
| IV | ichthyosis vulgaris; initial visit; interventricular; intervertebral; intravaginal; intravascular; i... |
| TID | time interval difference [imaging]; titrated initial dose |
| ADO | adolescent medicine; axiodisto-occlusal |