| IPA | immunoperoxidase assay; incontinentia pigmenti achromians; independent physician or practice associa... |
|---|---|
| ADA | adenosine deaminase; American Dental Association; American Dermatological Association; American Diab... |
| AGA | accelerated growth area; allergic granulomatosis and angiitis; American Gastroenterological Associat... |
| AOA | American Osteopathic Association; Administration on Aging; Alpha Omega Alpha Honor Society; American... |
| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |