Heterotransplantation of aortic valves.
D000818:Animals; D001011:Aorta / Q000601:surgery; D001021:Aortic Valve / Q000637:transplantation*; D002417:Cattle; D006801:Humans; D013242:Sterilization; D013536:Suture Techniques; D013552:Swine; D014021:Tissue Preservation; D014183:Transplantation, Heterologous