| 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... |
| AES | acetone-extracted serum; American Electroencephalographic Society; American Encephalographic Society... |
| ACP | accessory conduction pathway; acid phosphatase; acyl carrier protein; American College of Pathologis... |
| AAN | AIDS-associated nephropathy; alpha-amino nitrogen; American Academy of Neurology; American Academy o... |