Meta-analysis (13) Patients (12) Aortic valve (12) Patients (12) substitution (11) Mortality (11) mortalité (10) Mortality (10) Heart valve prosthesis (10) risque (9) Risk (9) Methods (8) Ci (Chinese poetry) (8) Methods (8) danger (6) Rates (6) Trials (6) Heart valves--Diseases (6) Rates (6) temps (durée) (5) Complications (5) Death (5) Time (5) Death (5) Curves (5) Confidence (5) mort (5) association (4) analyse (4) maladie (4)