Aortic valve replacement in patients with depressed left ventricular ejection fraction
Gilberto Venossi BarbosaI; Blau F. de SouzaII; Nei A ReyII; Orlando Carlos WenderIII; Pedro Pimentel FilhoII; Sílvia Regina Rios VieiraI; Hilário WolmeisterI; Waldomiro C ManfroiIII; Paulo P WestphalenI