| NIMH-ECA | NIMH-Epidemiologic Catchment Area |
|---|---|
| AAA | abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute... |
| ACD | absolute cardiac dullness; absolute claudication distance; acid-citrate-dextrose [solution]; actinom... |
| ACF | accessory clinical findings; acute care facility; anterior cervical fusion; area correction factor; ... |
| ADP | adenopathy; adenosine diphosphate; administrative psychiatry; approved drug product; area diastolic ... |