| IAC | image analysis cytometry; ineffective airway clearance; internal auditory canal; interposed abdomina... |
|---|---|
| IAD | inactivating dose; instructional advance directive; internal absorbed dose |
| IAM | Institute of Applied Microbiology [Japan]; Institute of Aviation Medicine; internal auditory meatus |
| IAS | immunosuppressive acidic substance; infant apnea syndrome; insulin autoimmune syndrome; interatrial ... |
| ICA | Institute of Clinical Analysis; internal carotid artery; intracranial aneurysm; islet cell antibody |