| 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;... |
| ALA | American Laryngological Association; American Lung Association; aminolevulinic acid; axiolabial |
| AMM | agnogenic myeloid metaplasia; ammonia; antibody to murine cardiac myosin; World Medical Association ... |