| IAA | Indol acetic acid |
|---|---|
| IAA | 3-indolyl-acetic acid |
| IAA | Ileo-anal anastomosis |
| IAA | Insulin autoantibodies |
| IAA | Insulin autoantibody |
| IAA | Interrupted aortic arch |
| IAA | Interruption of the aortic arch |
| IAA | Intra-abdominal abscess |
| IAA | Iodoacetamide |
| IAA | Iodoacetate |