| AD | accident dispensary; acetate dialysis; active disease; acute dermatomyositis; addict, addiction; ade... |
|---|---|
| ADKC | atopic dermatitis with keratoconjunctivitis |
| ARD | absolute reaction of degeneration; acute radiation disease; acute respiratory disease; adult respira... |
| AAA | abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute... |
| AAAI | American Academy of Allergy and Immunology |