| STANDOUT | soft thresholding and depth cueing of unspecified techniques |
|---|---|
| URD | unspecified respiratory disease; upper respiratory disease |
| AAA | abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute... |
| AAAI | American Academy of Allergy and Immunology |
| AACIA | American Association for Clinical Immunology and Allergy |