temps (durée) (1) norme (1) risque (1) pompe (1) mortalité (1) infection (1) hôpital (1) maladie (1) âge (1) méthode (1) taux (1) index (1) survie (1) Mortality (1) Surgery (1) Treatment (1) Grafting (1) Showing (1) Methods (1) Internal thoracic artery (1) Technique (1) Year (1) Echocardiography (1) Time (1) Survival (1) Surgery (1) Suffering (1) Risk (1) Poor (1) Patients (1)