| ACP | accessory conduction pathway; acid phosphatase; acyl carrier protein; American College of Pathologis... |
|---|---|
| AAO | American Academy of Osteopathy; American Academy of Ophthalmology; American Academy of Optometry; Am... |
| ACA | abnormal coronary artery; acrodermatitis chronica atrophicans; acute cerebellar ataxia; adenocarcino... |
| APS | adenosine phosphosulfate; American Pain Society; American Pediatric Society; American Physiological ... |
| ANA | acetylneuraminic acid; American Narcolepsy Association; American Neurological Association; American ... |