| APA | action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; America... |
|---|---|
| APAF | antipernicious anemia factor |
| CAA | carotid audiofrequency analysis; cerebral amyloid angiopathy; circulating anodic antigen; Clean Air ... |
| CDA | Canadian Dental Association; Certified Dental Assistant; chenodeoxycholic acid; ciliary dyskinesia a... |
| CHBA | congenital Heinz body hemolytic anemia |