[Valve substitutions with heterografts].
D000818:Animals; D006349:Heart Valve Diseases / Q000601:surgery*; D006351:Heart Valves / Q000637:transplantation*; D006801:Humans; D009926:Organ Preservation; D013552:Swine; D014183:Transplantation, Heterologous
La sostituzione valvolare con eteroinnesti