| AACIA | American Association for Clinical Immunology and Allergy |
|---|---|
| AACPDM | American Academy for Cerebral Palsy and Developmental Medicine |
| AAEE | American Association of Electromyography and Electrodiagnosis |
| AAG | 3-alkaladenine deoxyribonucleic acid glycosylase; allergic angiitis and granulomatosis; alpha-1-acid... |
| AAHPER | American Association for Health, Physical Education, and Recreation |