Aortic valve (5) stress (4) mortalité (4) Mortality (4) Area (4) Methods (4) Stress echocardiography (4) Area (4) Value (4) Patients (4) Mortality (4) Dobutamine (4) Aortic valve--Stenosis (4) Methods (4) Patients (4) risque (3) substitution (3) débit (3) maladie (3) âge (3) taux (3) Ci (Chinese poetry) (3) Risk (3) Rest (3) Age (3) Age (3) cohorte (3) maladie (3) pression (2) classification (2)