| AVO | aortic valve opening; aortic valve orifice; atrioventricular opening |
|---|---|
| SAR | scatter/air ratio; seasonal allergic rhinitis; sexual attitude reassessment; slowly adapting recepto... |
| SVAS | supravalvular aortic stenosis; supraventricular aortic stenosis |
| TAA | thioacetamide; thoracic aortic aneurysm; total ankle arthroplasty; transverse aortic arch; tumor-ass... |
| A2 | Aortic Component of the Second Heart Sound(S2) |