| ANA | acetylneuraminic acid; American Narcolepsy Association; American Neurological Association; American ... |
|---|---|
| APA | action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; America... |
| ATA | alimentary toxic aleukia; American Thyroid Association; aminotriazole; antithymic activity; antithyr... |
| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| FAT | family attitudes test; fluorescent antibody technique; fluorescent antibody test |