| AGPA | American Group Practice Association; American Group Psychotherapy Association |
|---|---|
| AHA | acetohydroxamic acid; acquired hemolytic anemia; acute hemolytic anemia; American Heart Association;... |
| AHS | Academy of Health Sciences; African horse sickness; alveolar hypoventilation syndrome; American Hear... |
| ALA | American Laryngological Association; American Lung Association; aminolevulinic acid; axiolabial |
| AMA | against medical advice; alkaline membrane assay; American Management Association; American Medical A... |