| ANTU | alpha-naphthylthiourea |
|---|---|
| ASTA | anti-alpha-staphylolysin |
| ATR | Achilles tendon reflex; alpha-thalassemia-mental retardation [syndrome] |
| ATRX, ATR-X | X-linked alpha-thalassemia mental retardation [syndrome] |
| ATS | Achard-Thiers syndrome; acid test solution; alpha-D-tocopherol acid succinate; American Thoracic Soc... |