substitution (3) Area (3) Death (3) Area (3) Patients (3) Heart failure (3) Heart (3) Death (3) Aortic valve--Stenosis (3) Aortic valve (3) Patients (3) mort (3) temps (durée) (2) risque (2) association (2) âge (2) procès (2) Treatment (2) Methods (2) Stress echocardiography (2) Time (2) Speed (2) Social groups (2) Sex (2) Risk (2) Rest (2) Months (2) Jet (Precious stone) (2) Dobutamine (2) Age (2)