| AAO | American Academy of Osteopathy; American Academy of Ophthalmology; American Academy of Optometry; Am... |
|---|---|
| AAPS | American Association of Plastic Surgeons; Arizona Articulation Proficiency Scale; Association of Ame... |
| AART | American Association for Rehabilitation Therapy; American Association for Respiratory Therapy |
| AGPA | American Group Practice Association; American Group Psychotherapy Association |
| AHA | acetohydroxamic acid; acquired hemolytic anemia; acute hemolytic anemia; American Heart Association;... |