| AIN | acute interstitial nephritis; American Institute of Nutrition; anterior interosseous nerve |
|---|---|
| AION | anterior ischemic optic neuropathy |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| AIVV | anterior informal vertebral vein |
| AL | absolute latency; acinar lumen; acute leukemia; adaptation level; albumin; alcoholism [and other dru... |