Mitral valve regurgitation: MedlinePlus Medical Encyclopedia
Aortic Valve Disease | Circulation
Mixed-Valve Disease: Management of Patients with Aortic Stenosis and Mitral Regurgitation: Thresholds for Surgery Versus Percutaneous Therapies | USC Journal
Aortic insufficiency Information | Mount Sinai - New York
Aortic Regurgitation Exam | Stanford Medicine 25 | Stanford Medicine