| AMS | ablepharon-microstomia syndrome; acute mountain sickness; adenosylmethionine synthetase; aggravated ... |
|---|---|
| APMR | Association for Physical and Mental Retardation |
| ARNMD | Association for Research in Nervous and Mental Diseases |
| ATR | Achilles tendon reflex; alpha-thalassemia-mental retardation [syndrome] |
| ATRX, ATR-X | X-linked alpha-thalassemia mental retardation [syndrome] |