title: [Echocardiogram of the Björk-Shiley mitral valve prosthesis].
mesh_terms: D004452:Echocardiography; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000502:physiology*
vernacular_title: Ehokardiogram mitralne proteze Björk-Shiley.