| RAA | Renal artery aneurysms |
|---|---|
| RAA | Renin-Angiotensin-Aldosterone |
| RAA | Right atrial appendage |
| RAAA | Ruptured abdominal aortic aneurysm |
| RAAS | Renin-Angiotensin-Aldosterone System |
| rAAV | Recombinant AAV |
| rAAV | Recombinant adeno-associated virus |
| rABP | Rat androgen-binding protein |
| Rac | Racemic |
| RAC | Radial alveolar count |